11857510452 has 48 divisors (see below), whose sum is σ = 28476915264. Its totient is φ = 3837792000.

The previous prime is 11857510439. The next prime is 11857510453. The reversal of 11857510452 is 25401575811.

It is a self number, because there is not a number n which added to its sum of digits gives 11857510452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857510453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46702 + ... + 160922.

It is an arithmetic number, because the mean of its divisors is an integer number (593269068).

Almost surely, 2^11857510452 is an apocalyptic number.

11857510452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11857510452 is an abundant number, since it is smaller than the sum of its proper divisors (16619404812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11857510452 is a wasteful number, since it uses less digits than its factorization.

11857510452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114480 (or 114478 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 39.

The spelling of 11857510452 in words is "eleven billion, eight hundred fifty-seven million, five hundred ten thousand, four hundred fifty-two".