10639168513 has 4 divisors (see below), whose sum is σ = 10640643840. Its totient is φ = 10637693188.

The previous prime is 10639168487. The next prime is 10639168543. The reversal of 10639168513 is 31586193601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10639168513 - 2⁵ = 10639168481 is a prime.

It is a super-2 number, since 2×10639168513² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10639168513.

It is not an unprimeable number, because it can be changed into a prime (10639168543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726793 + ... + 741286.

It is an arithmetic number, because the mean of its divisors is an integer number (2660160960).

Almost surely, 2^10639168513 is an apocalyptic number.

It is an amenable number.

10639168513 is a deficient number, since it is larger than the sum of its proper divisors (1475327).

10639168513 is an equidigital number, since it uses as much as digits as its factorization.

10639168513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475326.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 10639168513 in words is "ten billion, six hundred thirty-nine million, one hundred sixty-eight thousand, five hundred thirteen".