11625636631 has 16 divisors (see below), whose sum is σ = 13500864000. Its totient is φ = 9804584160.

The previous prime is 11625636619. The next prime is 11625636641. The reversal of 11625636631 is 13663652611.

11625636631 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 11625636631 - 2³³ = 3035702039 is a prime.

It is a super-2 number, since 2×11625636631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11625636641) 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, 224565 + ... + 271441.

It is an arithmetic number, because the mean of its divisors is an integer number (843804000).

Almost surely, 2^11625636631 is an apocalyptic number.

11625636631 is a deficient number, since it is larger than the sum of its proper divisors (1875227369).

11625636631 is an equidigital number, since it uses as much as digits as its factorization.

11625636631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47454.

The product of its digits is 116640, while the sum is 40.

The spelling of 11625636631 in words is "eleven billion, six hundred twenty-five million, six hundred thirty-six thousand, six hundred thirty-one".