1383009732720 has 960 divisors, whose sum is σ = 6009537650688. Its totient is φ = 276708096000.

The previous prime is 1383009732683. The next prime is 1383009732743. The reversal of 1383009732720 is 272379003831.

1383009732720 is a `hidden beast` number, since 1 + 3 + 8 + 300 + 9 + 73 + 272 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 169254235 + ... + 169262405.

Almost surely, 2^{1383009732720} is an apocalyptic number.

1383009732720 is a gapful number since it is divisible by the number (10) 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 1383009732720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3004768825344).

1383009732720 is an abundant number, since it is smaller than the sum of its proper divisors (4626527917968).

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

1383009732720 is a wasteful number, since it uses less digits than its factorization.

1383009732720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322 (or 8313 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 1383009732720 in words is "one trillion, three hundred eighty-three billion, nine million, seven hundred thirty-two thousand, seven hundred twenty".