23207071609 has 2 divisors, whose sum is σ = 23207071610. Its totient is φ = 23207071608.

The previous prime is 23207071583. The next prime is 23207071627. The reversal of 23207071609 is 90617070232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23065104384 + 141967225 = 151872^2 + 11915^2 .

It is a cyclic number.

It is not a de Polignac number, because 23207071609 - 2²⁵ = 23173517177 is a prime.

It is not a weakly prime, because it can be changed into another prime (23207074609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11603535804 + 11603535805.

It is an arithmetic number, because the mean of its divisors is an integer number (11603535805).

Almost surely, 2^23207071609 is an apocalyptic number.

It is an amenable number.

23207071609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23207071609 is an equidigital number, since it uses as much as digits as its factorization.

23207071609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 23207071609 in words is "twenty-three billion, two hundred seven million, seventy-one thousand, six hundred nine".