1186715868 has 96 divisors (see below), whose sum is σ = 3042547200. Its totient is φ = 357799680.

The previous prime is 1186715863. The next prime is 1186715869. The reversal of 1186715868 is 8685176811.

It is a self number, because there is not a number n which added to its sum of digits gives 1186715868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1186715863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3400158 + ... + 3400506.

It is an arithmetic number, because the mean of its divisors is an integer number (31693200).

Almost surely, 2^1186715868 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 1186715868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521273600).

1186715868 is an abundant number, since it is smaller than the sum of its proper divisors (1855831332).

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

1186715868 is a wasteful number, since it uses less digits than its factorization.

1186715868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its digits is 645120, while the sum is 51.

The square root of 1186715868 is about 34448.7426185630. The cubic root of 1186715868 is about 1058.7227608945.

The spelling of 1186715868 in words is "one billion, one hundred eighty-six million, seven hundred fifteen thousand, eight hundred sixty-eight".