63464315972 has 12 divisors (see below), whose sum is σ = 113158073196. Its totient is φ = 31133437920.

The previous prime is 63464315953. The next prime is 63464315987. The reversal of 63464315972 is 27951346436.

It can be written as a sum of positive squares in 2 ways, for example, as 18885905476 + 44578410496 = 137426^2 + 211136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63464315972.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149679779 + ... + 149680202.

It is an arithmetic number, because the mean of its divisors is an integer number (9429839433).

Almost surely, 2^63464315972 is an apocalyptic number.

It is an amenable number.

63464315972 is a deficient number, since it is larger than the sum of its proper divisors (49693757224).

63464315972 is a wasteful number, since it uses less digits than its factorization.

63464315972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299360038 (or 299360036 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The spelling of 63464315972 in words is "sixty-three billion, four hundred sixty-four million, three hundred fifteen thousand, nine hundred seventy-two".