632691648013 has 2 divisors, whose sum is σ = 632691648014. Its totient is φ = 632691648012.

The previous prime is 632691647989. The next prime is 632691648023. The reversal of 632691648013 is 310846196236.

It is a happy number.

632691648013 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., 603514567044 + 29177080969 = 776862^2 + 170813^2 .

It is a cyclic number.

It is not a de Polignac number, because 632691648013 - 2⁹ = 632691647501 is a prime.

It is a super-3 number, since 3×632691648013³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632691648023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316345824006 + 316345824007.

It is an arithmetic number, because the mean of its divisors is an integer number (316345824007).

Almost surely, 2^632691648013 is an apocalyptic number.

It is an amenable number.

632691648013 is a deficient number, since it is larger than the sum of its proper divisors (1).

632691648013 is an equidigital number, since it uses as much as digits as its factorization.

632691648013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 632691648013 in words is "six hundred thirty-two billion, six hundred ninety-one million, six hundred forty-eight thousand, thirteen".