23898660839 has 2 divisors, whose sum is σ = 23898660840. Its totient is φ = 23898660838.

The previous prime is 23898660823. The next prime is 23898660913. The reversal of 23898660839 is 93806689832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23898660839 - 2⁴ = 23898660823 is a prime.

It is a super-2 number, since 2×23898660839² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23898660139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11949330419 + 11949330420.

It is an arithmetic number, because the mean of its divisors is an integer number (11949330420).

Almost surely, 2^23898660839 is an apocalyptic number.

23898660839 is a deficient number, since it is larger than the sum of its proper divisors (1).

23898660839 is an equidigital number, since it uses as much as digits as its factorization.

23898660839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 23898660839 in words is "twenty-three billion, eight hundred ninety-eight million, six hundred sixty thousand, eight hundred thirty-nine".