128725147974 has 64 divisors (see below), whose sum is σ = 267938150400. Its totient is φ = 41179087488.

The previous prime is 128725147933. The next prime is 128725147997. The reversal of 128725147974 is 479741527821.

It is a congruent number.

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, 20239807 + ... + 20246165.

It is an arithmetic number, because the mean of its divisors is an integer number (4186533600).

Almost surely, 2^128725147974 is an apocalyptic number.

128725147974 is an abundant number, since it is smaller than the sum of its proper divisors (139213002426).

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

128725147974 is a wasteful number, since it uses less digits than its factorization.

128725147974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077.

The product of its digits is 7902720, while the sum is 57.

The spelling of 128725147974 in words is "one hundred twenty-eight billion, seven hundred twenty-five million, one hundred forty-seven thousand, nine hundred seventy-four".