63157015388 has 36 divisors (see below), whose sum is σ = 113943368616. Its totient is φ = 30622754400.

The previous prime is 63157015381. The next prime is 63157015391. The reversal of 63157015388 is 88351075136.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63157015381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1204331 + ... + 1255677.

Almost surely, 2^63157015388 is an apocalyptic number.

It is an amenable number.

63157015388 is a deficient number, since it is larger than the sum of its proper divisors (50786353228).

63157015388 is a wasteful number, since it uses less digits than its factorization.

63157015388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51554 (or 51481 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 63157015388 in words is "sixty-three billion, one hundred fifty-seven million, fifteen thousand, three hundred eighty-eight".