122971761745 has 16 divisors (see below), whose sum is σ = 168905283840. Its totient is φ = 84194345664.

The previous prime is 122971761739. The next prime is 122971761749. The reversal of 122971761745 is 547167179221.

It is a cyclic number.

It is not a de Polignac number, because 122971761745 - 2⁹ = 122971761233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122971761692 and 122971761701.

It is not an unprimeable number, because it can be changed into a prime (122971761749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667405 + ... + 2713114.

It is an arithmetic number, because the mean of its divisors is an integer number (10556580240).

Almost surely, 2^122971761745 is an apocalyptic number.

It is an amenable number.

122971761745 is a deficient number, since it is larger than the sum of its proper divisors (45933522095).

122971761745 is an equidigital number, since it uses as much as digits as its factorization.

122971761745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381184.

The product of its digits is 1481760, while the sum is 52.

The spelling of 122971761745 in words is "one hundred twenty-two billion, nine hundred seventy-one million, seven hundred sixty-one thousand, seven hundred forty-five".