13641022513 has 16 divisors (see below), whose sum is σ = 14523936336. Its totient is φ = 12767201280.

The previous prime is 13641022511. The next prime is 13641022531. The reversal of 13641022513 is 31522014631.

It can be written as a sum of positive squares in 8 ways, for example, as 1793353104 + 11847669409 = 42348^2 + 108847^2 .

It is not a de Polignac number, because 13641022513 - 2¹ = 13641022511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13641022511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4042495 + ... + 4045867.

It is an arithmetic number, because the mean of its divisors is an integer number (907746021).

Almost surely, 2^13641022513 is an apocalyptic number.

It is an amenable number.

13641022513 is a deficient number, since it is larger than the sum of its proper divisors (882913823).

13641022513 is a wasteful number, since it uses less digits than its factorization.

13641022513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 13641022513 in words is "thirteen billion, six hundred forty-one million, twenty-two thousand, five hundred thirteen".