78618575222 has 16 divisors (see below), whose sum is σ = 130757572944. Its totient is φ = 35149884000.

The previous prime is 78618575219. The next prime is 78618575227. The reversal of 78618575222 is 22257581687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78618575227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29290229 + ... + 29292912.

It is an arithmetic number, because the mean of its divisors is an integer number (8172348309).

Almost surely, 2^78618575222 is an apocalyptic number.

78618575222 is a deficient number, since it is larger than the sum of its proper divisors (52138997722).

78618575222 is a wasteful number, since it uses less digits than its factorization.

78618575222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58583215.

The product of its digits is 3763200, while the sum is 53.

The spelling of 78618575222 in words is "seventy-eight billion, six hundred eighteen million, five hundred seventy-five thousand, two hundred twenty-two".