122777572625 has 8 divisors (see below), whose sum is σ = 153226410792. Its totient is φ = 98222058000.

The previous prime is 122777572559. The next prime is 122777572657. The reversal of 122777572625 is 526275777221.

It can be written as a sum of positive squares in 4 ways, for example, as 401441296 + 122376131329 = 20036^2 + 349823^2 .

It is not a de Polignac number, because 122777572625 - 2¹⁴ = 122777556241 is a prime.

It is a Duffinian 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, 491110166 + ... + 491110415.

It is an arithmetic number, because the mean of its divisors is an integer number (19153301349).

Almost surely, 2^122777572625 is an apocalyptic number.

It is an amenable number.

122777572625 is a deficient number, since it is larger than the sum of its proper divisors (30448838167).

122777572625 is an frugal number, since it uses more digits than its factorization.

122777572625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982220596 (or 982220586 counting only the distinct ones).

The product of its digits is 5762400, while the sum is 53.

The spelling of 122777572625 in words is "one hundred twenty-two billion, seven hundred seventy-seven million, five hundred seventy-two thousand, six hundred twenty-five".