69122845681 has 8 divisors (see below), whose sum is σ = 70231589960. Its totient is φ = 68018476032.

The previous prime is 69122845663. The next prime is 69122845723. The reversal of 69122845681 is 18654822196.

It can be written as a sum of positive squares in 4 ways, for example, as 37454400 + 69085391281 = 6120^2 + 262841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69122845681 - 2²³ = 69114457073 is a prime.

It is a super-2 number, since 2×69122845681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69122845651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061796 + ... + 1125013.

It is an arithmetic number, because the mean of its divisors is an integer number (8778948745).

Almost surely, 2^69122845681 is an apocalyptic number.

It is an amenable number.

69122845681 is a deficient number, since it is larger than the sum of its proper divisors (1108744279).

69122845681 is a wasteful number, since it uses less digits than its factorization.

69122845681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187315.

The product of its digits is 1658880, while the sum is 52.

The spelling of 69122845681 in words is "sixty-nine billion, one hundred twenty-two million, eight hundred forty-five thousand, six hundred eighty-one".