23798587889 has 2 divisors, whose sum is σ = 23798587890. Its totient is φ = 23798587888.

The previous prime is 23798587877. The next prime is 23798587907. The reversal of 23798587889 is 98878589732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19005379600 + 4793208289 = 137860^2 + 69233^2 .

It is a cyclic number.

It is not a de Polignac number, because 23798587889 - 2⁸ = 23798587633 is a prime.

It is not a weakly prime, because it can be changed into another prime (23798587789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11899293944 + 11899293945.

It is an arithmetic number, because the mean of its divisors is an integer number (11899293945).

Almost surely, 2^23798587889 is an apocalyptic number.

It is an amenable number.

23798587889 is a deficient number, since it is larger than the sum of its proper divisors (1).

23798587889 is an equidigital number, since it uses as much as digits as its factorization.

23798587889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 74.

The spelling of 23798587889 in words is "twenty-three billion, seven hundred ninety-eight million, five hundred eighty-seven thousand, eight hundred eighty-nine".