128622158745 has 32 divisors (see below), whose sum is σ = 214383037440. Its totient is φ = 65776561920.

The previous prime is 128622158701. The next prime is 128622158767. The reversal of 128622158745 is 547851226821.

It is a happy number.

It is not a de Polignac number, because 128622158745 - 2¹¹ = 128622156697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1218154 + ... + 1319523.

It is an arithmetic number, because the mean of its divisors is an integer number (6699469920).

Almost surely, 2^128622158745 is an apocalyptic number.

128622158745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128622158745 is a deficient number, since it is larger than the sum of its proper divisors (85760878695).

128622158745 is a wasteful number, since it uses less digits than its factorization.

128622158745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537825.

The product of its digits is 2150400, while the sum is 51.

The spelling of 128622158745 in words is "one hundred twenty-eight billion, six hundred twenty-two million, one hundred fifty-eight thousand, seven hundred forty-five".