11697612318 has 192 divisors, whose sum is σ = 31000320000. Its totient is φ = 3182227776.

The previous prime is 11697612317. The next prime is 11697612337. The reversal of 11697612318 is 81321679611.

11697612318 is a `hidden beast` number, since 1 + 16 + 9 + 7 + 612 + 3 + 18 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11697612317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14144221 + ... + 14145047.

It is an arithmetic number, because the mean of its divisors is an integer number (161460000).

Almost surely, 2^11697612318 is an apocalyptic number.

11697612318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11697612318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15500160000).

11697612318 is an abundant number, since it is smaller than the sum of its proper divisors (19302707682).

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

11697612318 is a wasteful number, since it uses less digits than its factorization.

11697612318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 947 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The spelling of 11697612318 in words is "eleven billion, six hundred ninety-seven million, six hundred twelve thousand, three hundred eighteen".