63474345764 has 6 divisors (see below), whose sum is σ = 111080105094. Its totient is φ = 31737172880.

The previous prime is 63474345763. The next prime is 63474345787. The reversal of 63474345764 is 46754347436.

It can be written as a sum of positive squares in only one way, i.e., 50157185764 + 13317160000 = 223958^2 + 115400^2 .

It is not an unprimeable number, because it can be changed into a prime (63474345761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7934293217 + ... + 7934293224.

It is an arithmetic number, because the mean of its divisors is an integer number (18513350849).

Almost surely, 2^63474345764 is an apocalyptic number.

It is an amenable number.

63474345764 is a deficient number, since it is larger than the sum of its proper divisors (47605759330).

63474345764 is a wasteful number, since it uses less digits than its factorization.

63474345764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15868586445 (or 15868586443 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 53.

The spelling of 63474345764 in words is "sixty-three billion, four hundred seventy-four million, three hundred forty-five thousand, seven hundred sixty-four".