122742620465 has 32 divisors (see below), whose sum is σ = 157692407040. Its totient is φ = 91393818624.

The previous prime is 122742620449. The next prime is 122742620467. The reversal of 122742620465 is 564026247221.

It is a cyclic number.

It is not a de Polignac number, because 122742620465 - 2⁴ = 122742620449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122742620467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3016244 + ... + 3056666.

It is an arithmetic number, because the mean of its divisors is an integer number (4927887720).

Almost surely, 2^122742620465 is an apocalyptic number.

It is an amenable number.

122742620465 is a deficient number, since it is larger than the sum of its proper divisors (34949786575).

122742620465 is a wasteful number, since it uses less digits than its factorization.

122742620465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40841.

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 122742620465 its reverse (564026247221), we get a palindrome (686768867686).

The spelling of 122742620465 in words is "one hundred twenty-two billion, seven hundred forty-two million, six hundred twenty thousand, four hundred sixty-five".