122379629569 has 2 divisors, whose sum is σ = 122379629570. Its totient is φ = 122379629568.

The previous prime is 122379629539. The next prime is 122379629621. The reversal of 122379629569 is 965926973221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72533262400 + 49846367169 = 269320^2 + 223263^2 .

It is a cyclic number.

It is not a de Polignac number, because 122379629569 - 2³¹ = 120232145921 is a prime.

It is a super-2 number, since 2×122379629569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122379629509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61189814784 + 61189814785.

It is an arithmetic number, because the mean of its divisors is an integer number (61189814785).

Almost surely, 2^122379629569 is an apocalyptic number.

It is an amenable number.

122379629569 is a deficient number, since it is larger than the sum of its proper divisors (1).

122379629569 is an equidigital number, since it uses as much as digits as its factorization.

122379629569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22044960, while the sum is 61.

The spelling of 122379629569 in words is "one hundred twenty-two billion, three hundred seventy-nine million, six hundred twenty-nine thousand, five hundred sixty-nine".