128396880124 has 6 divisors (see below), whose sum is σ = 224694540224. Its totient is φ = 64198440060.

The previous prime is 128396880047. The next prime is 128396880167. The reversal of 128396880124 is 421088693821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16049610012 + ... + 16049610019.

Almost surely, 2^128396880124 is an apocalyptic number.

It is an amenable number.

128396880124 is a deficient number, since it is larger than the sum of its proper divisors (96297660100).

128396880124 is a wasteful number, since it uses less digits than its factorization.

128396880124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32099220035 (or 32099220033 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 128396880124 in words is "one hundred twenty-eight billion, three hundred ninety-six million, eight hundred eighty thousand, one hundred twenty-four".