122879427466 has 4 divisors (see below), whose sum is σ = 184319141202. Its totient is φ = 61439713732.

The previous prime is 122879427443. The next prime is 122879427467. The reversal of 122879427466 is 664724978221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122790672225 + 88755241 = 350415^2 + 9421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122879427466.

It is not an unprimeable number, because it can be changed into a prime (122879427467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30719856865 + ... + 30719856868.

Almost surely, 2^122879427466 is an apocalyptic number.

122879427466 is a deficient number, since it is larger than the sum of its proper divisors (61439713736).

122879427466 is an equidigital number, since it uses as much as digits as its factorization.

122879427466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61439713735.

The product of its digits is 16257024, while the sum is 58.

The spelling of 122879427466 in words is "one hundred twenty-two billion, eight hundred seventy-nine million, four hundred twenty-seven thousand, four hundred sixty-six".