122756545761 has 4 divisors (see below), whose sum is σ = 163675394352. Its totient is φ = 81837697172.

The previous prime is 122756545711. The next prime is 122756545787. The reversal of 122756545761 is 167545657221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122756545761 - 2⁶ = 122756545697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122756545711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20459424291 + ... + 20459424296.

It is an arithmetic number, because the mean of its divisors is an integer number (40918848588).

Almost surely, 2^122756545761 is an apocalyptic number.

It is an amenable number.

122756545761 is a deficient number, since it is larger than the sum of its proper divisors (40918848591).

122756545761 is an equidigital number, since it uses as much as digits as its factorization.

122756545761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40918848590.

The product of its digits is 3528000, while the sum is 51.

The spelling of 122756545761 in words is "one hundred twenty-two billion, seven hundred fifty-six million, five hundred forty-five thousand, seven hundred sixty-one".