11481021868 has 12 divisors (see below), whose sum is σ = 20095668712. Its totient is φ = 5739402240.

The previous prime is 11481021847. The next prime is 11481021901. The reversal of 11481021868 is 86812018411.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11481021868.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253653 + ... + 295468.

Almost surely, 2^11481021868 is an apocalyptic number.

It is an amenable number.

11481021868 is a deficient number, since it is larger than the sum of its proper divisors (8614646844).

11481021868 is a wasteful number, since it uses less digits than its factorization.

11481021868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554352 (or 554350 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 40.

The spelling of 11481021868 in words is "eleven billion, four hundred eighty-one million, twenty-one thousand, eight hundred sixty-eight".