128862308774 has 16 divisors (see below), whose sum is σ = 198535809888. Its totient is φ = 62684024832.

The previous prime is 128862308767. The next prime is 128862308777. The reversal of 128862308774 is 477803268821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128862308777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797567 + ... + 945429.

It is an arithmetic number, because the mean of its divisors is an integer number (12408488118).

Almost surely, 2^128862308774 is an apocalyptic number.

128862308774 is a deficient number, since it is larger than the sum of its proper divisors (69673501114).

128862308774 is a wasteful number, since it uses less digits than its factorization.

128862308774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159679.

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 128862308774 in words is "one hundred twenty-eight billion, eight hundred sixty-two million, three hundred eight thousand, seven hundred seventy-four".