64124310657 has 64 divisors (see below), whose sum is σ = 97420216320. Its totient is φ = 37175308800.

The previous prime is 64124310647. The next prime is 64124310667. The reversal of 64124310657 is 75601342146.

It is a happy number.

64124310657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64124310647) and next prime (64124310667).

It is not a de Polignac number, because 64124310657 - 2⁷ = 64124310529 is a prime.

It is a super-2 number, since 2×64124310657² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64124310637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40152183 + ... + 40153779.

It is an arithmetic number, because the mean of its divisors is an integer number (1522190880).

Almost surely, 2^64124310657 is an apocalyptic number.

It is an amenable number.

64124310657 is a deficient number, since it is larger than the sum of its proper divisors (33295905663).

64124310657 is a wasteful number, since it uses less digits than its factorization.

64124310657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 64124310657 in words is "sixty-four billion, one hundred twenty-four million, three hundred ten thousand, six hundred fifty-seven".