11621424651 has 16 divisors (see below), whose sum is σ = 16334918400. Its totient is φ = 7328981088.

The previous prime is 11621424637. The next prime is 11621424671. The reversal of 11621424651 is 15642412611.

11621424651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11621424651 - 2¹⁸ = 11621162507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11621424671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111991 + ... + 189168.

It is an arithmetic number, because the mean of its divisors is an integer number (1020932400).

Almost surely, 2^11621424651 is an apocalyptic number.

11621424651 is a deficient number, since it is larger than the sum of its proper divisors (4713493749).

11621424651 is a wasteful number, since it uses less digits than its factorization.

11621424651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301858.

The product of its digits is 11520, while the sum is 33.

The spelling of 11621424651 in words is "eleven billion, six hundred twenty-one million, four hundred twenty-four thousand, six hundred fifty-one".