38500028531 has 4 divisors (see below), whose sum is σ = 38730567792. Its totient is φ = 38269489272.

The previous prime is 38500028477. The next prime is 38500028551. The reversal of 38500028531 is 13582000583.

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 38500028531 - 2¹⁰ = 38500027507 is a prime.

It is a super-2 number, since 2×38500028531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38500028491 and 38500028500.

It is not an unprimeable number, because it can be changed into a prime (38500028551) 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, 115269380 + ... + 115269713.

It is an arithmetic number, because the mean of its divisors is an integer number (9682641948).

Almost surely, 2^38500028531 is an apocalyptic number.

38500028531 is a deficient number, since it is larger than the sum of its proper divisors (230539261).

38500028531 is a wasteful number, since it uses less digits than its factorization.

38500028531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230539260.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 38500028531 in words is "thirty-eight billion, five hundred million, twenty-eight thousand, five hundred thirty-one".