631581022677 has 16 divisors (see below), whose sum is σ = 933723362880. Its totient is φ = 376501353600.

The previous prime is 631581022669. The next prime is 631581022733. The reversal of 631581022677 is 776220185136.

It is not a de Polignac number, because 631581022677 - 2³ = 631581022669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631581020677) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 156873552 + ... + 156877577.

It is an arithmetic number, because the mean of its divisors is an integer number (58357710180).

Almost surely, 2^631581022677 is an apocalyptic number.

It is an amenable number.

631581022677 is a deficient number, since it is larger than the sum of its proper divisors (302142340203).

631581022677 is a wasteful number, since it uses less digits than its factorization.

631581022677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313751204.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 631581022677 in words is "six hundred thirty-one billion, five hundred eighty-one million, twenty-two thousand, six hundred seventy-seven".