631290741983953 has 2 divisors, whose sum is σ = 631290741983954. Its totient is φ = 631290741983952.

The previous prime is 631290741983927. The next prime is 631290741984031. The reversal of 631290741983953 is 359389147092136.

631290741983953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443975578449984 + 187315163533969 = 21070728^2 + 13686313^2 .

It is a cyclic number.

It is not a de Polignac number, because 631290741983953 - 2⁹ = 631290741983441 is a prime.

It is not a weakly prime, because it can be changed into another prime (631290741903953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315645370991976 + 315645370991977.

It is an arithmetic number, because the mean of its divisors is an integer number (315645370991977).

It is a 2-persistent number, because it is pandigital, and so is 2⋅631290741983953 = 1262581483967906, but 3⋅631290741983953 = 1893872225951859 is not.

Almost surely, 2^{631290741983953} is an apocalyptic number.

It is an amenable number.

631290741983953 is a deficient number, since it is larger than the sum of its proper divisors (1).

631290741983953 is an equidigital number, since it uses as much as digits as its factorization.

631290741983953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 631290741983953 in words is "six hundred thirty-one trillion, two hundred ninety billion, seven hundred forty-one million, nine hundred eighty-three thousand, nine hundred fifty-three".