122777707745 has 24 divisors (see below), whose sum is σ = 186968357568. Its totient is φ = 76536751200.

The previous prime is 122777707739. The next prime is 122777707771. The reversal of 122777707745 is 547707777221.

It is not a de Polignac number, because 122777707745 - 2⁴ = 122777707729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22776101 + ... + 22781490.

It is an arithmetic number, because the mean of its divisors is an integer number (7790348232).

Almost surely, 2^122777707745 is an apocalyptic number.

It is an amenable number.

122777707745 is a deficient number, since it is larger than the sum of its proper divisors (64190649823).

122777707745 is a wasteful number, since it uses less digits than its factorization.

122777707745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45557621 (or 45557614 counting only the distinct ones).

The product of its (nonzero) digits is 9411920, while the sum is 56.

The spelling of 122777707745 in words is "one hundred twenty-two billion, seven hundred seventy-seven million, seven hundred seven thousand, seven hundred forty-five".