38537539544 has 32 divisors (see below), whose sum is σ = 82596667680. Its totient is φ = 16512843264.

The previous prime is 38537539541. The next prime is 38537539567. The reversal of 38537539544 is 44593573583.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 38537539544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38537539541) 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 7 ways as a sum of consecutive naturals, for example, 231674 + ... + 361590.

It is an arithmetic number, because the mean of its divisors is an integer number (2581145865).

Almost surely, 2^38537539544 is an apocalyptic number.

It is an amenable number.

38537539544 is an abundant number, since it is smaller than the sum of its proper divisors (44059128136).

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

38537539544 is a wasteful number, since it uses less digits than its factorization.

38537539544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135227 (or 135223 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 56.

The spelling of 38537539544 in words is "thirty-eight billion, five hundred thirty-seven million, five hundred thirty-nine thousand, five hundred forty-four".