38291854464 has 96 divisors (see below), whose sum is σ = 114269959440. Its totient is φ = 12763941120.

The previous prime is 38291854457. The next prime is 38291854481. The reversal of 38291854464 is 46445819283.

38291854464 is a `hidden beast` number, since 3 + 8 + 2 + 91 + 8 + 544 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×38291854464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 38291854464.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584442 + ... + 646649.

Almost surely, 2^38291854464 is an apocalyptic number.

It is an amenable number.

38291854464 is an abundant number, since it is smaller than the sum of its proper divisors (75978104976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38291854464 is an equidigital number, since it uses as much as digits as its factorization.

38291854464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231120 (or 1231096 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 38291854464 in words is "thirty-eight billion, two hundred ninety-one million, eight hundred fifty-four thousand, four hundred sixty-four".