63747063631 has 16 divisors (see below), whose sum is σ = 65336923008. Its totient is φ = 62177587200.

The previous prime is 63747063629. The next prime is 63747063643. The reversal of 63747063631 is 13636074736.

It is a cyclic number.

It is not a de Polignac number, because 63747063631 - 2¹ = 63747063629 is a prime.

It is a super-2 number, since 2×63747063631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63747063031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12183786 + ... + 12189016.

It is an arithmetic number, because the mean of its divisors is an integer number (4083557688).

Almost surely, 2^63747063631 is an apocalyptic number.

63747063631 is a deficient number, since it is larger than the sum of its proper divisors (1589859377).

63747063631 is a wasteful number, since it uses less digits than its factorization.

63747063631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122.

The product of its (nonzero) digits is 1143072, while the sum is 46.

The spelling of 63747063631 in words is "sixty-three billion, seven hundred forty-seven million, sixty-three thousand, six hundred thirty-one".