11864857914 has 128 divisors (see below), whose sum is σ = 34159104000. Its totient is φ = 2964475584.

The previous prime is 11864857913. The next prime is 11864857937. The reversal of 11864857914 is 41975846811.

11864857914 is a `hidden beast` number, since 1 + 1 + 8 + 64 + 8 + 579 + 1 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (11864857913) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29827 + ... + 156905.

It is an arithmetic number, because the mean of its divisors is an integer number (266868000).

Almost surely, 2^11864857914 is an apocalyptic number.

11864857914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11864857914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17079552000).

11864857914 is an abundant number, since it is smaller than the sum of its proper divisors (22294246086).

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

11864857914 is a wasteful number, since it uses less digits than its factorization.

11864857914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127129 (or 127123 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The spelling of 11864857914 in words is "eleven billion, eight hundred sixty-four million, eight hundred fifty-seven thousand, nine hundred fourteen".