128937252574 has 32 divisors (see below), whose sum is σ = 209566897344. Its totient is φ = 59143011840.

The previous prime is 128937252571. The next prime is 128937252623. The reversal of 128937252574 is 475252739821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128937252571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19891414 + ... + 19897894.

It is an arithmetic number, because the mean of its divisors is an integer number (6548965542).

Almost surely, 2^128937252574 is an apocalyptic number.

128937252574 is a deficient number, since it is larger than the sum of its proper divisors (80629644770).

128937252574 is a wasteful number, since it uses less digits than its factorization.

128937252574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092.

The product of its digits is 8467200, while the sum is 55.

The spelling of 128937252574 in words is "one hundred twenty-eight billion, nine hundred thirty-seven million, two hundred fifty-two thousand, five hundred seventy-four".