11725236513 has 32 divisors (see below), whose sum is σ = 17487360000. Its totient is φ = 7764510096.

The previous prime is 11725236503. The next prime is 11725236533. The reversal of 11725236513 is 31563252711.

11725236513 is a `hidden beast` number, since 1 + 1 + 72 + 523 + 65 + 1 + 3 = 666.

It is not a de Polignac number, because 11725236513 - 2²² = 11721042209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11725236503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2830798 + ... + 2834936.

It is an arithmetic number, because the mean of its divisors is an integer number (546480000).

Almost surely, 2^11725236513 is an apocalyptic number.

It is an amenable number.

11725236513 is a deficient number, since it is larger than the sum of its proper divisors (5762123487).

11725236513 is a wasteful number, since it uses less digits than its factorization.

11725236513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826 (or 4820 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The spelling of 11725236513 in words is "eleven billion, seven hundred twenty-five million, two hundred thirty-six thousand, five hundred thirteen".