11868817356 has 192 divisors, whose sum is σ = 35849318400. Its totient is φ = 3360268800.

The previous prime is 11868817349. The next prime is 11868817361. The reversal of 11868817356 is 65371886811.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1062456 + ... + 1073568.

It is an arithmetic number, because the mean of its divisors is an integer number (186715200).

Almost surely, 2^11868817356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11868817356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17924659200).

11868817356 is an abundant number, since it is smaller than the sum of its proper divisors (23980501044).

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

11868817356 is a wasteful number, since it uses less digits than its factorization.

11868817356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11197 (or 11189 counting only the distinct ones).

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

The spelling of 11868817356 in words is "eleven billion, eight hundred sixty-eight million, eight hundred seventeen thousand, three hundred fifty-six".