128387254802 has 16 divisors (see below), whose sum is σ = 198048281472. Its totient is φ = 62393800560.

The previous prime is 128387254783. The next prime is 128387254817. The reversal of 128387254802 is 208452783821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5648474 + ... + 5671157.

It is an arithmetic number, because the mean of its divisors is an integer number (12378017592).

Almost surely, 2^128387254802 is an apocalyptic number.

128387254802 is a deficient number, since it is larger than the sum of its proper divisors (69661026670).

128387254802 is a wasteful number, since it uses less digits than its factorization.

128387254802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11319793.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 128387254802 in words is "one hundred twenty-eight billion, three hundred eighty-seven million, two hundred fifty-four thousand, eight hundred two".