38140681572 has 120 divisors (see below), whose sum is σ = 115324646976. Its totient is φ = 10765991232.

The previous prime is 38140681559. The next prime is 38140681597. The reversal of 38140681572 is 27518604183.

38140681572 is a `hidden beast` number, since 3 + 8 + 14 + 0 + 68 + 1 + 572 = 666.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 86938 + ... + 289550.

Almost surely, 2^38140681572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38140681572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57662323488).

38140681572 is an abundant number, since it is smaller than the sum of its proper divisors (77183965404).

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

38140681572 is a wasteful number, since it uses less digits than its factorization.

38140681572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202719 (or 202708 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 38140681572 in words is "thirty-eight billion, one hundred forty million, six hundred eighty-one thousand, five hundred seventy-two".