1079691818 has 16 divisors (see below), whose sum is σ = 1638942120. Its totient is φ = 533400000.

The previous prime is 1079691797. The next prime is 1079691863. The reversal of 1079691818 is 8181969701.

It can be written as a sum of positive squares in 4 ways, for example, as 1078268569 + 1423249 = 32837^2 + 1193^2 .

It is a super-2 number, since 2×1079691818² = 2331468843712290248, which contains 22 as substring.

It is a Curzon number.

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, 97568 + ... + 108068.

Almost surely, 2^1079691818 is an apocalyptic number.

1079691818 is a deficient number, since it is larger than the sum of its proper divisors (559250302).

1079691818 is a wasteful number, since it uses less digits than its factorization.

1079691818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113.

The product of its (nonzero) digits is 217728, while the sum is 50.

The square root of 1079691818 is about 32858.6642759562. The cubic root of 1079691818 is about 1025.8879691281.

The spelling of 1079691818 in words is "one billion, seventy-nine million, six hundred ninety-one thousand, eight hundred eighteen".