1111964568 has 96 divisors (see below), whose sum is σ = 3283986240. Its totient is φ = 311026560.

The previous prime is 1111964527. The next prime is 1111964573. The reversal of 1111964568 is 8654691111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32155 + ... + 57077.

It is an arithmetic number, because the mean of its divisors is an integer number (34208190).

Almost surely, 2^1111964568 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 1111964568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641993120).

1111964568 is an abundant number, since it is smaller than the sum of its proper divisors (2172021672).

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

1111964568 is a wasteful number, since it uses less digits than its factorization.

1111964568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24969 (or 24952 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 1111964568 is about 33346.1327292986. The cubic root of 1111964568 is about 1036.0092896808.

The spelling of 1111964568 in words is "one billion, one hundred eleven million, nine hundred sixty-four thousand, five hundred sixty-eight".