38951334464 has 28 divisors (see below), whose sum is σ = 88336063104. Its totient is φ = 16693428864.

The previous prime is 38951334449. The next prime is 38951334469. The reversal of 38951334464 is 46443315983.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (38951334469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43472024 + ... + 43472919.

Almost surely, 2^38951334464 is an apocalyptic number.

It is an amenable number.

38951334464 is an abundant number, since it is smaller than the sum of its proper divisors (49384728640).

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

38951334464 is an equidigital number, since it uses as much as digits as its factorization.

38951334464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86944962 (or 86944952 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 50.

The spelling of 38951334464 in words is "thirty-eight billion, nine hundred fifty-one million, three hundred thirty-four thousand, four hundred sixty-four".