11801712625 has 16 divisors (see below), whose sum is σ = 14827410000. Its totient is φ = 9377990400.

The previous prime is 11801712623. The next prime is 11801712641. The reversal of 11801712625 is 52621710811.

It can be written as a sum of positive squares in 8 ways, for example, as 3734798769 + 8066913856 = 61113^2 + 89816^2 .

It is not a de Polignac number, because 11801712625 - 2¹ = 11801712623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11801712623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298200 + ... + 335449.

It is an arithmetic number, because the mean of its divisors is an integer number (926713125).

Almost surely, 2^11801712625 is an apocalyptic number.

It is an amenable number.

11801712625 is a deficient number, since it is larger than the sum of its proper divisors (3025697375).

11801712625 is an equidigital number, since it uses as much as digits as its factorization.

11801712625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633813 (or 633803 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 11801712625 in words is "eleven billion, eight hundred one million, seven hundred twelve thousand, six hundred twenty-five".