64628545275 has 120 divisors (see below), whose sum is σ = 139999563264. Its totient is φ = 28857124800.

The previous prime is 64628545249. The next prime is 64628545291. The reversal of 64628545275 is 57254582646.

64628545275 is a `hidden beast` number, since 6 + 4 + 6 + 28 + 545 + 2 + 75 = 666.

It is not a de Polignac number, because 64628545275 - 2⁷ = 64628545147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 556510 + ... + 662540.

Almost surely, 2^64628545275 is an apocalyptic number.

64628545275 is an abundant number, since it is smaller than the sum of its proper divisors (75371017989).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64628545275 is a wasteful number, since it uses less digits than its factorization.

64628545275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106103 (or 106089 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 54.

The spelling of 64628545275 in words is "sixty-four billion, six hundred twenty-eight million, five hundred forty-five thousand, two hundred seventy-five".