128702341525 has 24 divisors (see below), whose sum is σ = 161456362560. Its totient is φ = 101759391360.

The previous prime is 128702341513. The next prime is 128702341549. The reversal of 128702341525 is 525143207821.

It is not a de Polignac number, because 128702341525 - 2²¹ = 128700244373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5477352 + ... + 5500798.

It is an arithmetic number, because the mean of its divisors is an integer number (6727348440).

Almost surely, 2^128702341525 is an apocalyptic number.

It is an amenable number.

128702341525 is a deficient number, since it is larger than the sum of its proper divisors (32754021035).

128702341525 is a wasteful number, since it uses less digits than its factorization.

128702341525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26013 (or 26008 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 128702341525 in words is "one hundred twenty-eight billion, seven hundred two million, three hundred forty-one thousand, five hundred twenty-five".