122985765009 has 12 divisors (see below), whose sum is σ = 177999284736. Its totient is φ = 81827503992.

The previous prime is 122985764987. The next prime is 122985765013. The reversal of 122985765009 is 900567589221.

122985765009 is a `hidden beast` number, since 12 + 2 + 9 + 8 + 576 + 50 + 0 + 9 = 666.

It is not a de Polignac number, because 122985765009 - 2⁵ = 122985764977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122985763009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13579057 + ... + 13588110.

It is an arithmetic number, because the mean of its divisors is an integer number (14833273728).

Almost surely, 2^122985765009 is an apocalyptic number.

It is an amenable number.

122985765009 is a deficient number, since it is larger than the sum of its proper divisors (55013519727).

122985765009 is a wasteful number, since it uses less digits than its factorization.

122985765009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27167676 (or 27167673 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 122985765009 in words is "one hundred twenty-two billion, nine hundred eighty-five million, seven hundred sixty-five thousand, nine".