631085286005 has 32 divisors (see below), whose sum is σ = 773506423296. Its totient is φ = 494172000000.

The previous prime is 631085285981. The next prime is 631085286019. The reversal of 631085286005 is 500682580136.

It is not a de Polignac number, because 631085286005 - 2⁸ = 631085285749 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170515655 + ... + 170519355.

It is an arithmetic number, because the mean of its divisors is an integer number (24172075728).

Almost surely, 2^631085286005 is an apocalyptic number.

It is an amenable number.

631085286005 is a deficient number, since it is larger than the sum of its proper divisors (142421137291).

631085286005 is a wasteful number, since it uses less digits than its factorization.

631085286005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 631085286005 in words is "six hundred thirty-one billion, eighty-five million, two hundred eighty-six thousand, five".