122764693409 has 2 divisors, whose sum is σ = 122764693410. Its totient is φ = 122764693408.

The previous prime is 122764693309. The next prime is 122764693421. The reversal of 122764693409 is 904396467221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108675715600 + 14088977809 = 329660^2 + 118697^2 .

It is a cyclic number.

It is not a de Polignac number, because 122764693409 - 2⁸ = 122764693153 is a prime.

It is not a weakly prime, because it can be changed into another prime (122764693309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61382346704 + 61382346705.

It is an arithmetic number, because the mean of its divisors is an integer number (61382346705).

Almost surely, 2^122764693409 is an apocalyptic number.

It is an amenable number.

122764693409 is a deficient number, since it is larger than the sum of its proper divisors (1).

122764693409 is an equidigital number, since it uses as much as digits as its factorization.

122764693409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 122764693409 in words is "one hundred twenty-two billion, seven hundred sixty-four million, six hundred ninety-three thousand, four hundred nine".