64145375682 has 32 divisors (see below), whose sum is σ = 129391516800. Its totient is φ = 21198991488.

The previous prime is 64145375659. The next prime is 64145375713. The reversal of 64145375682 is 28657354146.

It is a super-2 number, since 2×64145375682² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307494 + ... + 472062.

It is an arithmetic number, because the mean of its divisors is an integer number (4043484900).

Almost surely, 2^64145375682 is an apocalyptic number.

64145375682 is an abundant number, since it is smaller than the sum of its proper divisors (65246141118).

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

64145375682 is a wasteful number, since it uses less digits than its factorization.

64145375682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165130.

The product of its digits is 4838400, while the sum is 51.

The spelling of 64145375682 in words is "sixty-four billion, one hundred forty-five million, three hundred seventy-five thousand, six hundred eighty-two".