2309658623947 has 2 divisors, whose sum is σ = 2309658623948. Its totient is φ = 2309658623946.

The previous prime is 2309658623911. The next prime is 2309658624061. The reversal of 2309658623947 is 7493268569032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2309658623947 - 2²⁷ = 2309524406219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2309658623347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154829311973 + 1154829311974.

It is an arithmetic number, because the mean of its divisors is an integer number (1154829311974).

Almost surely, 2^{2309658623947} is an apocalyptic number.

2309658623947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309658623947 is an equidigital number, since it uses as much as digits as its factorization.

2309658623947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 2309658623947 in words is "two trillion, three hundred nine billion, six hundred fifty-eight million, six hundred twenty-three thousand, nine hundred forty-seven".