63381427156 has 6 divisors (see below), whose sum is σ = 110917497530. Its totient is φ = 31690713576.

The previous prime is 63381427133. The next prime is 63381427223. The reversal of 63381427156 is 65172418336.

It can be written as a sum of positive squares in only one way, i.e., 56295154756 + 7086272400 = 237266^2 + 84180^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7922678391 + ... + 7922678398.

Almost surely, 2^63381427156 is an apocalyptic number.

It is an amenable number.

63381427156 is a deficient number, since it is larger than the sum of its proper divisors (47536070374).

63381427156 is a wasteful number, since it uses less digits than its factorization.

63381427156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15845356793 (or 15845356791 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The spelling of 63381427156 in words is "sixty-three billion, three hundred eighty-one million, four hundred twenty-seven thousand, one hundred fifty-six".