64756307140 has 24 divisors (see below), whose sum is σ = 155415137472. Its totient is φ = 22202162400.

The previous prime is 64756307101. The next prime is 64756307153. The reversal of 64756307140 is 4170365746.

64756307140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 231272386 + ... + 231272665.

It is an arithmetic number, because the mean of its divisors is an integer number (6475630728).

Almost surely, 2^64756307140 is an apocalyptic number.

It is an amenable number.

64756307140 is an abundant number, since it is smaller than the sum of its proper divisors (90658830332).

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

64756307140 is a wasteful number, since it uses less digits than its factorization.

64756307140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462545067 (or 462545065 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 64756307140 in words is "sixty-four billion, seven hundred fifty-six million, three hundred seven thousand, one hundred forty".