11718751880 has 64 divisors (see below), whose sum is σ = 28780920000. Its totient is φ = 4258888960.

The previous prime is 11718751879. The next prime is 11718751903. The reversal of 11718751880 is 8815781711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861371 + ... + 874869.

It is an arithmetic number, because the mean of its divisors is an integer number (449701875).

Almost surely, 2^11718751880 is an apocalyptic number.

11718751880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11718751880 is an abundant number, since it is smaller than the sum of its proper divisors (17062168120).

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

11718751880 is a wasteful number, since it uses less digits than its factorization.

11718751880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15494 (or 15490 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 47.

The spelling of 11718751880 in words is "eleven billion, seven hundred eighteen million, seven hundred fifty-one thousand, eight hundred eighty".