38355518537 has 16 divisors (see below), whose sum is σ = 44690849280. Its totient is φ = 32234983872.

The previous prime is 38355518477. The next prime is 38355518563. The reversal of 38355518537 is 73581555383.

It is not a de Polignac number, because 38355518537 - 2²⁰ = 38354469961 is a prime.

It is a super-2 number, since 2×38355518537² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (38355518137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554639 + ... + 619947.

It is an arithmetic number, because the mean of its divisors is an integer number (2793178080).

Almost surely, 2^38355518537 is an apocalyptic number.

It is an amenable number.

38355518537 is a deficient number, since it is larger than the sum of its proper divisors (6335330743).

38355518537 is a wasteful number, since it uses less digits than its factorization.

38355518537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66952.

The product of its digits is 7560000, while the sum is 53.

The spelling of 38355518537 in words is "thirty-eight billion, three hundred fifty-five million, five hundred eighteen thousand, five hundred thirty-seven".