11089905868 has 24 divisors (see below), whose sum is σ = 20986160832. Its totient is φ = 5107739904.

The previous prime is 11089905859. The next prime is 11089905881. The reversal of 11089905868 is 86850998011.

It is a super-2 number, since 2×11089905868² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731771 + ... + 1738162.

It is an arithmetic number, because the mean of its divisors is an integer number (874423368).

Almost surely, 2^11089905868 is an apocalyptic number.

It is an amenable number.

11089905868 is a deficient number, since it is larger than the sum of its proper divisors (9896254964).

11089905868 is a wasteful number, since it uses less digits than its factorization.

11089905868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470001 (or 3469999 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 55.

The spelling of 11089905868 in words is "eleven billion, eighty-nine million, nine hundred five thousand, eight hundred sixty-eight".