38640488460 has 96 divisors (see below), whose sum is σ = 125982646272. Its totient is φ = 8665463040.

The previous prime is 38640488449. The next prime is 38640488483. The reversal of 38640488460 is 6488404683.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 845676 + ... + 890195.

It is an arithmetic number, because the mean of its divisors is an integer number (1312319232).

Almost surely, 2^38640488460 is an apocalyptic number.

38640488460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38640488460 is an abundant number, since it is smaller than the sum of its proper divisors (87342157812).

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

38640488460 is a wasteful number, since it uses less digits than its factorization.

38640488460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735943 (or 1735941 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 38640488460 in words is "thirty-eight billion, six hundred forty million, four hundred eighty-eight thousand, four hundred sixty".