63551483631 has 8 divisors (see below), whose sum is σ = 94150346160. Its totient is φ = 42367655736.

The previous prime is 63551483581. The next prime is 63551483647. The reversal of 63551483631 is 13638415536.

63551483631 is a `hidden beast` number, since 6 + 3 + 5 + 5 + 1 + 4 + 8 + 3 + 631 = 666.

It is not a de Polignac number, because 63551483631 - 2¹⁹ = 63550959343 is a prime.

It is a super-2 number, since 2×63551483631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63551483131) 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, 1176879300 + ... + 1176879353.

It is an arithmetic number, because the mean of its divisors is an integer number (11768793270).

Almost surely, 2^63551483631 is an apocalyptic number.

63551483631 is a deficient number, since it is larger than the sum of its proper divisors (30598862529).

63551483631 is a wasteful number, since it uses less digits than its factorization.

63551483631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353758662 (or 2353758656 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 63551483631 in words is "sixty-three billion, five hundred fifty-one million, four hundred eighty-three thousand, six hundred thirty-one".