38699697456 has 120 divisors (see below), whose sum is σ = 129218448240. Its totient is φ = 11057050368.

The previous prime is 38699697451. The next prime is 38699697461. The reversal of 38699697456 is 65479699683.

38699697456 is a `hidden beast` number, since 3 + 86 + 9 + 9 + 6 + 97 + 456 = 666.

It is an interprime number because it is at equal distance from previous prime (38699697451) and next prime (38699697461).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (38699697451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 892941 + ... + 935276.

It is an arithmetic number, because the mean of its divisors is an integer number (1076820402).

Almost surely, 2^38699697456 is an apocalyptic number.

38699697456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38699697456 is an abundant number, since it is smaller than the sum of its proper divisors (90518750784).

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

38699697456 is a wasteful number, since it uses less digits than its factorization.

38699697456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828248 (or 1828229 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 72.

The spelling of 38699697456 in words is "thirty-eight billion, six hundred ninety-nine million, six hundred ninety-seven thousand, four hundred fifty-six".