11857702145 has 24 divisors (see below), whose sum is σ = 14877132864. Its totient is φ = 9068050656.

The previous prime is 11857702117. The next prime is 11857702189. The reversal of 11857702145 is 54120775811.

It is not a de Polignac number, because 11857702145 - 2⁶ = 11857702081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462452 + ... + 487418.

It is an arithmetic number, because the mean of its divisors is an integer number (619880536).

Almost surely, 2^11857702145 is an apocalyptic number.

It is an amenable number.

11857702145 is a deficient number, since it is larger than the sum of its proper divisors (3019430719).

11857702145 is an equidigital number, since it uses as much as digits as its factorization.

11857702145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25109 (or 25062 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 11857702145 in words is "eleven billion, eight hundred fifty-seven million, seven hundred two thousand, one hundred forty-five".