11551868 has 12 divisors (see below), whose sum is σ = 20240472. Its totient is φ = 5768880.

The previous prime is 11551861. The next prime is 11551879. The reversal of 11551868 is 86815511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4046 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (1686706).

Almost surely, 2^11551868 is an apocalyptic number.

It is an amenable number.

11551868 is a deficient number, since it is larger than the sum of its proper divisors (8688604).

11551868 is a wasteful number, since it uses less digits than its factorization.

11551868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3530 counting only the distinct ones).

The product of its digits is 9600, while the sum is 35.

The square root of 11551868 is about 3398.8039072591. The cubic root of 11551868 is about 226.0567116925.

The spelling of 11551868 in words is "eleven million, five hundred fifty-one thousand, eight hundred sixty-eight".