63131694764 has 24 divisors (see below), whose sum is σ = 113064262080. Its totient is φ = 30827808144.

The previous prime is 63131694761. The next prime is 63131694781. The reversal of 63131694764 is 46749613136.

It is a super-2 number, since 2×63131694764² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63131694761) 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, 1681307 + ... + 1718445.

It is an arithmetic number, because the mean of its divisors is an integer number (4711010920).

Almost surely, 2^63131694764 is an apocalyptic number.

It is an amenable number.

63131694764 is a deficient number, since it is larger than the sum of its proper divisors (49932567316).

63131694764 is a wasteful number, since it uses less digits than its factorization.

63131694764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47069 (or 47067 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 50.

The spelling of 63131694764 in words is "sixty-three billion, one hundred thirty-one million, six hundred ninety-four thousand, seven hundred sixty-four".