122895666729 has 48 divisors (see below), whose sum is σ = 197905593600. Its totient is φ = 72864230400.

The previous prime is 122895666713. The next prime is 122895666743. The reversal of 122895666729 is 927666598221.

It is not a de Polignac number, because 122895666729 - 2⁴ = 122895666713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122895666709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 780409 + ... + 924569.

It is an arithmetic number, because the mean of its divisors is an integer number (4123033200).

Almost surely, 2^122895666729 is an apocalyptic number.

It is an amenable number.

122895666729 is a deficient number, since it is larger than the sum of its proper divisors (75009926871).

122895666729 is a wasteful number, since it uses less digits than its factorization.

122895666729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144366 (or 144363 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 122895666729 in words is "one hundred twenty-two billion, eight hundred ninety-five million, six hundred sixty-six thousand, seven hundred twenty-nine".