1382657921568 has 288 divisors, whose sum is σ = 4932238252032. Its totient is φ = 356927731200.

The previous prime is 1382657921563. The next prime is 1382657921573. The reversal of 1382657921568 is 8651297562831.

1382657921568 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 6 + 579 + 2 + 1 + 56 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1382657921563) and next prime (1382657921573).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1382657921563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3423433 + ... + 3805943.

It is an arithmetic number, because the mean of its divisors is an integer number (17125827264).

Almost surely, 2^{1382657921568} is an apocalyptic number.

1382657921568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1382657921568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2466119126016).

1382657921568 is an abundant number, since it is smaller than the sum of its proper divisors (3549580330464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1382657921568 is a wasteful number, since it uses less digits than its factorization.

1382657921568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382708 (or 382697 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 1382657921568 in words is "one trillion, three hundred eighty-two billion, six hundred fifty-seven million, nine hundred twenty-one thousand, five hundred sixty-eight".