63311807964 has 24 divisors (see below), whose sum is σ = 148855246848. Its totient is φ = 20942836720.

The previous prime is 63311807963. The next prime is 63311808067. The reversal of 63311807964 is 46970811336.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63311807963) 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, 20135772 + ... + 20138915.

It is an arithmetic number, because the mean of its divisors is an integer number (6202301952).

Almost surely, 2^63311807964 is an apocalyptic number.

It is an amenable number.

63311807964 is an abundant number, since it is smaller than the sum of its proper divisors (85543438884).

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

63311807964 is a wasteful number, since it uses less digits than its factorization.

63311807964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40274825 (or 40274823 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 63311807964 in words is "sixty-three billion, three hundred eleven million, eight hundred seven thousand, nine hundred sixty-four".