10645245331631 has 4 divisors (see below), whose sum is σ = 10653066968064. Its totient is φ = 10637423695200.

The previous prime is 10645245331621. The next prime is 10645245331657. The reversal of 10645245331631 is 13613354254601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10645245331631 - 2¹⁴ = 10645245315247 is a prime.

It is a super-2 number, since 2×10645245331631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10645245331621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3910816175 + ... + 3910818896.

It is an arithmetic number, because the mean of its divisors is an integer number (2663266742016).

Almost surely, 2^{10645245331631} is an apocalyptic number.

10645245331631 is a deficient number, since it is larger than the sum of its proper divisors (7821636433).

10645245331631 is an equidigital number, since it uses as much as digits as its factorization.

10645245331631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7821636432.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 10645245331631 in words is "ten trillion, six hundred forty-five billion, two hundred forty-five million, three hundred thirty-one thousand, six hundred thirty-one".