631406147006730 has 32 divisors (see below), whose sum is σ = 1515380147568000. Its totient is φ = 168374373118272.

The previous prime is 631406147006717. The next prime is 631406147006777. The reversal of 631406147006730 is 37600741604136.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 631406147006730.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28863805 + ... + 45781344.

It is an arithmetic number, because the mean of its divisors is an integer number (47355629611500).

Almost surely, 2^{631406147006730} is an apocalyptic number.

631406147006730 is an abundant number, since it is smaller than the sum of its proper divisors (883974000561270).

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

631406147006730 is a wasteful number, since it uses less digits than its factorization.

631406147006730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74927118.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 631406147006730 in words is "six hundred thirty-one trillion, four hundred six billion, one hundred forty-seven million, six thousand, seven hundred thirty".