128177623654 has 16 divisors (see below), whose sum is σ = 196422303168. Its totient is φ = 62704426752.

The previous prime is 128177623633. The next prime is 128177623669. The reversal of 128177623654 is 456326771821.

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, 60982 + ... + 509974.

It is an arithmetic number, because the mean of its divisors is an integer number (12276393948).

Almost surely, 2^128177623654 is an apocalyptic number.

128177623654 is a deficient number, since it is larger than the sum of its proper divisors (68244679514).

128177623654 is a wasteful number, since it uses less digits than its factorization.

128177623654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452079.

The product of its digits is 3386880, while the sum is 52.

The spelling of 128177623654 in words is "one hundred twenty-eight billion, one hundred seventy-seven million, six hundred twenty-three thousand, six hundred fifty-four".