11512745885 has 16 divisors (see below), whose sum is σ = 13862330496. Its totient is φ = 9178897728.

The previous prime is 11512745813. The next prime is 11512745897. The reversal of 11512745885 is 58854721511.

It is a cyclic number.

It is not a de Polignac number, because 11512745885 - 2¹⁰ = 11512744861 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 15 ways as a sum of consecutive naturals, for example, 1913552 + ... + 1919558.

It is an arithmetic number, because the mean of its divisors is an integer number (866395656).

Almost surely, 2^11512745885 is an apocalyptic number.

It is an amenable number.

11512745885 is a deficient number, since it is larger than the sum of its proper divisors (2349584611).

11512745885 is an equidigital number, since it uses as much as digits as its factorization.

11512745885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252.

The product of its digits is 448000, while the sum is 47.

The spelling of 11512745885 in words is "eleven billion, five hundred twelve million, seven hundred forty-five thousand, eight hundred eighty-five".