64274072577 has 32 divisors (see below), whose sum is σ = 100720314240. Its totient is φ = 35943505920.

The previous prime is 64274072543. The next prime is 64274072591. The reversal of 64274072577 is 77527047246.

It is not a de Polignac number, because 64274072577 - 2²² = 64269878273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64274072507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125723 + ... + 1181439.

It is an arithmetic number, because the mean of its divisors is an integer number (3147509820).

Almost surely, 2^64274072577 is an apocalyptic number.

It is an amenable number.

64274072577 is a deficient number, since it is larger than the sum of its proper divisors (36446241663).

64274072577 is a wasteful number, since it uses less digits than its factorization.

64274072577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58433.

The product of its (nonzero) digits is 4609920, while the sum is 51.

The spelling of 64274072577 in words is "sixty-four billion, two hundred seventy-four million, seventy-two thousand, five hundred seventy-seven".