11621426013 has 12 divisors (see below), whose sum is σ = 16789919328. Its totient is φ = 7746041160.

The previous prime is 11621425997. The next prime is 11621426053. The reversal of 11621426013 is 31062412611.

It is a happy number.

11621426013 is a `hidden beast` number, since 1 + 1 + 621 + 4 + 26 + 0 + 13 = 666.

It is not a de Polignac number, because 11621426013 - 2⁴ = 11621425997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621426053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83745 + ... + 173942.

It is an arithmetic number, because the mean of its divisors is an integer number (1399159944).

Almost surely, 2^11621426013 is an apocalyptic number.

It is an amenable number.

11621426013 is a deficient number, since it is larger than the sum of its proper divisors (5168493315).

11621426013 is a wasteful number, since it uses less digits than its factorization.

11621426013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262704 (or 262701 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 11621426013 its reverse (31062412611), we get a palindrome (42683838624).

The spelling of 11621426013 in words is "eleven billion, six hundred twenty-one million, four hundred twenty-six thousand, thirteen".