11642594641 has 24 divisors (see below), whose sum is σ = 13047894720. Its totient is φ = 10336607424.

The previous prime is 11642594633. The next prime is 11642594651. The reversal of 11642594641 is 14649524611.

It is not a de Polignac number, because 11642594641 - 2³ = 11642594633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11642594611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16420795 + ... + 16421503.

It is an arithmetic number, because the mean of its divisors is an integer number (543662280).

Almost surely, 2^11642594641 is an apocalyptic number.

It is an amenable number.

11642594641 is a deficient number, since it is larger than the sum of its proper divisors (1405300079).

11642594641 is an frugal number, since it uses more digits than its factorization.

11642594641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 804 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 11642594641 in words is "eleven billion, six hundred forty-two million, five hundred ninety-four thousand, six hundred forty-one".