69960972409 has 2 divisors, whose sum is σ = 69960972410. Its totient is φ = 69960972408.

The previous prime is 69960972377. The next prime is 69960972449. The reversal of 69960972409 is 90427906996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69232134400 + 728838009 = 263120^2 + 26997^2 .

It is a cyclic number.

It is not a de Polignac number, because 69960972409 - 2⁵ = 69960972377 is a prime.

It is not a weakly prime, because it can be changed into another prime (69960972449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34980486204 + 34980486205.

It is an arithmetic number, because the mean of its divisors is an integer number (34980486205).

Almost surely, 2^69960972409 is an apocalyptic number.

It is an amenable number.

69960972409 is a deficient number, since it is larger than the sum of its proper divisors (1).

69960972409 is an equidigital number, since it uses as much as digits as its factorization.

69960972409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 69960972409 in words is "sixty-nine billion, nine hundred sixty million, nine hundred seventy-two thousand, four hundred nine".