63314916644 has 72 divisors (see below), whose sum is σ = 129455597880. Its totient is φ = 27016464384.

The previous prime is 63314916641. The next prime is 63314916647. The reversal of 63314916644 is 44661941336.

It is an interprime number because it is at equal distance from previous prime (63314916641) and next prime (63314916647).

It can be written as a sum of positive squares in 4 ways, for example, as 12130379044 + 51184537600 = 110138^2 + 226240^2 .

It is not an unprimeable number, because it can be changed into a prime (63314916641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89301362 + ... + 89302070.

It is an arithmetic number, because the mean of its divisors is an integer number (1797994415).

Almost surely, 2^63314916644 is an apocalyptic number.

It is an amenable number.

63314916644 is an abundant number, since it is smaller than the sum of its proper divisors (66140681236).

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

63314916644 is a wasteful number, since it uses less digits than its factorization.

63314916644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2068 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 47.

The spelling of 63314916644 in words is "sixty-three billion, three hundred fourteen million, nine hundred sixteen thousand, six hundred forty-four".