128462871957 has 32 divisors (see below), whose sum is σ = 204328396800. Its totient is φ = 70193576640.

The previous prime is 128462871949. The next prime is 128462871961. The reversal of 128462871957 is 759178264821.

It is not a de Polignac number, because 128462871957 - 2³ = 128462871949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128462871957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128462871997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1553107 + ... + 1633727.

It is an arithmetic number, because the mean of its divisors is an integer number (6385262400).

Almost surely, 2^128462871957 is an apocalyptic number.

It is an amenable number.

128462871957 is a deficient number, since it is larger than the sum of its proper divisors (75865524843).

128462871957 is a wasteful number, since it uses less digits than its factorization.

128462871957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83953.

The product of its digits is 13547520, while the sum is 60.

The spelling of 128462871957 in words is "one hundred twenty-eight billion, four hundred sixty-two million, eight hundred seventy-one thousand, nine hundred fifty-seven".