128757013138702 has 16 divisors (see below), whose sum is σ = 208099810345392. Its totient is φ = 59395538842560.

The previous prime is 128757013138697. The next prime is 128757013138711. The reversal of 128757013138702 is 207831310757821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282236903 + ... + 1282337314.

It is an arithmetic number, because the mean of its divisors is an integer number (13006238146587).

Almost surely, 2^{128757013138702} is an apocalyptic number.

128757013138702 is a deficient number, since it is larger than the sum of its proper divisors (79342797206690).

128757013138702 is a wasteful number, since it uses less digits than its factorization.

128757013138702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564576163.

The product of its (nonzero) digits is 3951360, while the sum is 55.

The spelling of 128757013138702 in words is "one hundred twenty-eight trillion, seven hundred fifty-seven billion, thirteen million, one hundred thirty-eight thousand, seven hundred two".