38465515871 has 6 divisors (see below), whose sum is σ = 39837651672. Its totient is φ = 37139117960.

The previous prime is 38465515867. The next prime is 38465515873. The reversal of 38465515871 is 17851556483.

It is not a de Polignac number, because 38465515871 - 2² = 38465515867 is a prime.

It is a super-2 number, since 2×38465515871² (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 (38465515873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22868075 + ... + 22869756.

It is an arithmetic number, because the mean of its divisors is an integer number (6639608612).

Almost surely, 2^38465515871 is an apocalyptic number.

38465515871 is a deficient number, since it is larger than the sum of its proper divisors (1372135801).

38465515871 is an equidigital number, since it uses as much as digits as its factorization.

38465515871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45737889 (or 45737860 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 53.

The spelling of 38465515871 in words is "thirty-eight billion, four hundred sixty-five million, five hundred fifteen thousand, eight hundred seventy-one".