128503653960 has 128 divisors (see below), whose sum is σ = 434123919360. Its totient is φ = 30147475200.

The previous prime is 128503653923. The next prime is 128503653979. The reversal of 128503653960 is 69356305821.

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 31 ways as a sum of consecutive naturals, for example, 1529262 + ... + 1611101.

It is an arithmetic number, because the mean of its divisors is an integer number (3391593120).

Almost surely, 2^128503653960 is an apocalyptic number.

128503653960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128503653960 is an abundant number, since it is smaller than the sum of its proper divisors (305620265400).

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

128503653960 is a wasteful number, since it uses less digits than its factorization.

128503653960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140419 (or 3140415 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 128503653960 in words is "one hundred twenty-eight billion, five hundred three million, six hundred fifty-three thousand, nine hundred sixty".