11915318690 has 64 divisors (see below), whose sum is σ = 23860811520. Its totient is φ = 4247712000.

The previous prime is 11915318677. The next prime is 11915318713. The reversal of 11915318690 is 9681351911.

It is a super-2 number, since 2×11915318690² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1409396 + ... + 1417824.

It is an arithmetic number, because the mean of its divisors is an integer number (372825180).

Almost surely, 2^11915318690 is an apocalyptic number.

11915318690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11915318690 is an abundant number, since it is smaller than the sum of its proper divisors (11945492830).

11915318690 is a wasteful number, since it uses less digits than its factorization.

11915318690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 11915318690 in words is "eleven billion, nine hundred fifteen million, three hundred eighteen thousand, six hundred ninety".