1384535388690 has 320 divisors, whose sum is σ = 3979425542400. Its totient is φ = 344730484224.

The previous prime is 1384535388671. The next prime is 1384535388707. The reversal of 1384535388690 is 968835354831.

1384535388690 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 5 + 3 + 538 + 8 + 6 + 90 = 666.

It is a super-2 number, since 2×1384535388690² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 145139941 + ... + 145149479.

It is an arithmetic number, because the mean of its divisors is an integer number (12435704820).

Almost surely, 2^{1384535388690} is an apocalyptic number.

1384535388690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384535388690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989712771200).

1384535388690 is an abundant number, since it is smaller than the sum of its proper divisors (2594890153710).

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

1384535388690 is a wasteful number, since it uses less digits than its factorization.

1384535388690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791 (or 9782 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 1384535388690 in words is "one trillion, three hundred eighty-four billion, five hundred thirty-five million, three hundred eighty-eight thousand, six hundred ninety".