11857458916 has 24 divisors (see below), whose sum is σ = 21782436480. Its totient is φ = 5636993472.

The previous prime is 11857458913. The next prime is 11857458919. The reversal of 11857458916 is 61985475811.

It is an interprime number because it is at equal distance from previous prime (11857458913) and next prime (11857458919).

It is not an unprimeable number, because it can be changed into a prime (11857458913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370521 + ... + 401248.

It is an arithmetic number, because the mean of its divisors is an integer number (907601520).

Almost surely, 2^11857458916 is an apocalyptic number.

It is an amenable number.

11857458916 is a deficient number, since it is larger than the sum of its proper divisors (9924977564).

11857458916 is a wasteful number, since it uses less digits than its factorization.

11857458916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771963 (or 771961 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 55.

The spelling of 11857458916 in words is "eleven billion, eight hundred fifty-seven million, four hundred fifty-eight thousand, nine hundred sixteen".