11517433745 has 8 divisors (see below), whose sum is σ = 14010248616. Its totient is φ = 9087728256.

The previous prime is 11517433721. The next prime is 11517433757. The reversal of 11517433745 is 54733471511.

It can be written as a sum of positive squares in 4 ways, for example, as 12082576 + 11505351169 = 3476^2 + 107263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11517433745 - 2⁸ = 11517433489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15776942 + ... + 15777671.

It is an arithmetic number, because the mean of its divisors is an integer number (1751281077).

Almost surely, 2^11517433745 is an apocalyptic number.

It is an amenable number.

11517433745 is a deficient number, since it is larger than the sum of its proper divisors (2492814871).

11517433745 is an equidigital number, since it uses as much as digits as its factorization.

11517433745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31554691.

The product of its digits is 176400, while the sum is 41.

The spelling of 11517433745 in words is "eleven billion, five hundred seventeen million, four hundred thirty-three thousand, seven hundred forty-five".