11916810725 has 24 divisors (see below), whose sum is σ = 14999528808. Its totient is φ = 9390752000.

The previous prime is 11916810713. The next prime is 11916810757. The reversal of 11916810725 is 52701861911.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 735440161 + 11181370564 = 27119^2 + 105742^2 .

It is not a de Polignac number, because 11916810725 - 2⁴ = 11916810709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485447 + ... + 509403.

It is an arithmetic number, because the mean of its divisors is an integer number (624980367).

Almost surely, 2^11916810725 is an apocalyptic number.

It is an amenable number.

11916810725 is a deficient number, since it is larger than the sum of its proper divisors (3082718083).

11916810725 is a wasteful number, since it uses less digits than its factorization.

11916810725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24265 (or 24260 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 41.

The spelling of 11916810725 in words is "eleven billion, nine hundred sixteen million, eight hundred ten thousand, seven hundred twenty-five".