23898406662847 has 2 divisors, whose sum is σ = 23898406662848. Its totient is φ = 23898406662846.

The previous prime is 23898406662803. The next prime is 23898406662857. The reversal of 23898406662847 is 74826660489832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23898406662847 - 2²³ = 23898398274239 is a prime.

It is a super-2 number, since 2×23898406662847² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23898406662847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23898406662857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11949203331423 + 11949203331424.

It is an arithmetic number, because the mean of its divisors is an integer number (11949203331424).

Almost surely, 2^{23898406662847} is an apocalyptic number.

23898406662847 is a deficient number, since it is larger than the sum of its proper divisors (1).

23898406662847 is an equidigital number, since it uses as much as digits as its factorization.

23898406662847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1337720832, while the sum is 73.

The spelling of 23898406662847 in words is "twenty-three trillion, eight hundred ninety-eight billion, four hundred six million, six hundred sixty-two thousand, eight hundred forty-seven".