631463945454 has 48 divisors (see below), whose sum is σ = 1394958605040. Its totient is φ = 206406766080.

The previous prime is 631463945401. The next prime is 631463945467. The reversal of 631463945454 is 454549364136.

631463945454 is a `hidden beast` number, since 6 + 3 + 1 + 4 + 6 + 3 + 94 + 545 + 4 = 666.

It is a super-2 number, since 2×631463945454² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631463945454.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1468692 + ... + 1849319.

It is an arithmetic number, because the mean of its divisors is an integer number (29061637605).

Almost surely, 2^631463945454 is an apocalyptic number.

631463945454 is an abundant number, since it is smaller than the sum of its proper divisors (763494659586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631463945454 is a wasteful number, since it uses less digits than its factorization.

631463945454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318225 (or 3318222 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 631463945454 in words is "six hundred thirty-one billion, four hundred sixty-three million, nine hundred forty-five thousand, four hundred fifty-four".