631013626654 has 8 divisors (see below), whose sum is σ = 972102073608. Its totient is φ = 306979602120.

The previous prime is 631013626651. The next prime is 631013626717. The reversal of 631013626654 is 456626310136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 631013626654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631013626651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4263605512 + ... + 4263605659.

It is an arithmetic number, because the mean of its divisors is an integer number (121512759201).

Almost surely, 2^631013626654 is an apocalyptic number.

631013626654 is a deficient number, since it is larger than the sum of its proper divisors (341088446954).

631013626654 is a wasteful number, since it uses less digits than its factorization.

631013626654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527211210.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 631013626654 in words is "six hundred thirty-one billion, thirteen million, six hundred twenty-six thousand, six hundred fifty-four".