38516661292 has 12 divisors (see below), whose sum is σ = 67425462720. Its totient is φ = 19252243376.

The previous prime is 38516661251. The next prime is 38516661311. The reversal of 38516661292 is 29216661583.

It is a super-2 number, since 2×38516661292² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507567 + ... + 1532902.

It is an arithmetic number, because the mean of its divisors is an integer number (5618788560).

Almost surely, 2^38516661292 is an apocalyptic number.

It is an amenable number.

38516661292 is a deficient number, since it is larger than the sum of its proper divisors (28908801428).

38516661292 is a wasteful number, since it uses less digits than its factorization.

38516661292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043640 (or 3043638 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The spelling of 38516661292 in words is "thirty-eight billion, five hundred sixteen million, six hundred sixty-one thousand, two hundred ninety-two".