679022774818 has 16 divisors (see below), whose sum is σ = 1087644936960. Its totient is φ = 317229771600.

The previous prime is 679022774809. The next prime is 679022774879. The reversal of 679022774818 is 818477220976.

It is a super-2 number, since 2×679022774818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188825448 + ... + 188829043.

It is an arithmetic number, because the mean of its divisors is an integer number (67977808560).

Almost surely, 2^679022774818 is an apocalyptic number.

679022774818 is a deficient number, since it is larger than the sum of its proper divisors (408622162142).

679022774818 is a wasteful number, since it uses less digits than its factorization.

679022774818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377654553.

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 679022774818 in words is "six hundred seventy-nine billion, twenty-two million, seven hundred seventy-four thousand, eight hundred eighteen".