64753464772 has 24 divisors (see below), whose sum is σ = 114886598400. Its totient is φ = 31928844096.

The previous prime is 64753464703. The next prime is 64753464773. The reversal of 64753464772 is 27746435746.

It is a super-2 number, since 2×64753464772² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64753464773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564729 + ... + 3582847.

It is an arithmetic number, because the mean of its divisors is an integer number (4786941600).

Almost surely, 2^64753464772 is an apocalyptic number.

It is an amenable number.

64753464772 is a deficient number, since it is larger than the sum of its proper divisors (50133133628).

64753464772 is a wasteful number, since it uses less digits than its factorization.

64753464772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30435 (or 30433 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 55.

The spelling of 64753464772 in words is "sixty-four billion, seven hundred fifty-three million, four hundred sixty-four thousand, seven hundred seventy-two".