13642902861 has 64 divisors (see below), whose sum is σ = 22412544000. Its totient is φ = 7358335488.

The previous prime is 13642902857. The next prime is 13642902869. The reversal of 13642902861 is 16820924631.

It is not a de Polignac number, because 13642902861 - 2² = 13642902857 is a prime.

It is a super-2 number, since 2×13642902861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642902869) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6001021 + ... + 6003293.

It is an arithmetic number, because the mean of its divisors is an integer number (350196000).

Almost surely, 2^13642902861 is an apocalyptic number.

It is an amenable number.

13642902861 is a deficient number, since it is larger than the sum of its proper divisors (8769641139).

13642902861 is a wasteful number, since it uses less digits than its factorization.

13642902861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 13642902861 in words is "thirteen billion, six hundred forty-two million, nine hundred two thousand, eight hundred sixty-one".