13239442641 has 8 divisors (see below), whose sum is σ = 17653800960. Its totient is φ = 8825689712.

The previous prime is 13239442639. The next prime is 13239442651. The reversal of 13239442641 is 14624493231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13239442641 - 2¹ = 13239442639 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13239442641.

It is not an unprimeable number, because it can be changed into a prime (13239442651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97590 + ... + 189743.

It is an arithmetic number, because the mean of its divisors is an integer number (2206725120).

Almost surely, 2^13239442641 is an apocalyptic number.

It is an amenable number.

13239442641 is a deficient number, since it is larger than the sum of its proper divisors (4414358319).

13239442641 is a wasteful number, since it uses less digits than its factorization.

13239442641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302695.

The product of its digits is 124416, while the sum is 39.

The spelling of 13239442641 in words is "thirteen billion, two hundred thirty-nine million, four hundred forty-two thousand, six hundred forty-one".