78822266645434 has 64 divisors (see below), whose sum is σ = 130690500433920. Its totient is φ = 35431411055040.

The previous prime is 78822266645413. The next prime is 78822266645461. The reversal of 78822266645434 is 43454666222887.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78822266645434.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2043755619 + ... + 2043794185.

It is an arithmetic number, because the mean of its divisors is an integer number (2042039069280).

Almost surely, 2^{78822266645434} is an apocalyptic number.

78822266645434 is a deficient number, since it is larger than the sum of its proper divisors (51868233788486).

78822266645434 is a wasteful number, since it uses less digits than its factorization.

78822266645434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52075.

The product of its digits is 743178240, while the sum is 67.

The spelling of 78822266645434 in words is "seventy-eight trillion, eight hundred twenty-two billion, two hundred sixty-six million, six hundred forty-five thousand, four hundred thirty-four".