38514937831 has 4 divisors (see below), whose sum is σ = 38525855200. Its totient is φ = 38504020464.

The previous prime is 38514937789. The next prime is 38514937837. The reversal of 38514937831 is 13873941583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38514937831 - 2⁹ = 38514937319 is a prime.

It is a super-2 number, since 2×38514937831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38514937837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5453391 + ... + 5460448.

It is an arithmetic number, because the mean of its divisors is an integer number (9631463800).

Almost surely, 2^38514937831 is an apocalyptic number.

38514937831 is a deficient number, since it is larger than the sum of its proper divisors (10917369).

38514937831 is a wasteful number, since it uses less digits than its factorization.

38514937831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10917368.

The product of its digits is 2177280, while the sum is 52.

The spelling of 38514937831 in words is "thirty-eight billion, five hundred fourteen million, nine hundred thirty-seven thousand, eight hundred thirty-one".