128468579634 has 32 divisors (see below), whose sum is σ = 285568920000. Its totient is φ = 42810381792.

The previous prime is 128468579623. The next prime is 128468579663. The reversal of 128468579634 is 436975864821.

128468579634 is a `hidden beast` number, since 1 + 2 + 8 + 468 + 57 + 96 + 34 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158644 + ... + 531135.

It is an arithmetic number, because the mean of its divisors is an integer number (8924028750).

Almost surely, 2^128468579634 is an apocalyptic number.

128468579634 is an abundant number, since it is smaller than the sum of its proper divisors (157100340366).

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

128468579634 is a wasteful number, since it uses less digits than its factorization.

128468579634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693239 (or 693233 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 128468579634 in words is "one hundred twenty-eight billion, four hundred sixty-eight million, five hundred seventy-nine thousand, six hundred thirty-four".