631430255534 has 32 divisors (see below), whose sum is σ = 1050209713056. Its totient is φ = 282838469760.

The previous prime is 631430255527. The next prime is 631430255543. The reversal of 631430255534 is 435552034136.

It is a junction number, because it is equal to n+sod(n) for n = 631430255491 and 631430255500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444752 + ... + 1208579.

It is an arithmetic number, because the mean of its divisors is an integer number (32819053533).

Almost surely, 2^631430255534 is an apocalyptic number.

631430255534 is a deficient number, since it is larger than the sum of its proper divisors (418779457522).

631430255534 is a wasteful number, since it uses less digits than its factorization.

631430255534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653780.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 631430255534 in words is "six hundred thirty-one billion, four hundred thirty million, two hundred fifty-five thousand, five hundred thirty-four".