631550878244753 has 2 divisors, whose sum is σ = 631550878244754. Its totient is φ = 631550878244752.

The previous prime is 631550878244687. The next prime is 631550878244779. The reversal of 631550878244753 is 357442878055136.

It is a happy number.

631550878244753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627454755608209 + 4096122636544 = 25049047^2 + 2023888^2 .

It is a cyclic number.

It is not a de Polignac number, because 631550878244753 - 2²⁰ = 631550877196177 is a prime.

It is not a weakly prime, because it can be changed into another prime (631550878244653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315775439122376 + 315775439122377.

It is an arithmetic number, because the mean of its divisors is an integer number (315775439122377).

Almost surely, 2^{631550878244753} is an apocalyptic number.

It is an amenable number.

631550878244753 is a deficient number, since it is larger than the sum of its proper divisors (1).

631550878244753 is an equidigital number, since it uses as much as digits as its factorization.

631550878244753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376000, while the sum is 68.

The spelling of 631550878244753 in words is "six hundred thirty-one trillion, five hundred fifty billion, eight hundred seventy-eight million, two hundred forty-four thousand, seven hundred fifty-three".