23578487089 has 2 divisors, whose sum is σ = 23578487090. Its totient is φ = 23578487088.

The previous prime is 23578487063. The next prime is 23578487113. The reversal of 23578487089 is 98078487532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21427104400 + 2151382689 = 146380^2 + 46383^2 .

It is a cyclic number.

It is not a de Polignac number, because 23578487089 - 2⁹ = 23578486577 is a prime.

It is a super-2 number, since 2×23578487089² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23578487389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11789243544 + 11789243545.

It is an arithmetic number, because the mean of its divisors is an integer number (11789243545).

Almost surely, 2^23578487089 is an apocalyptic number.

It is an amenable number.

23578487089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23578487089 is an equidigital number, since it uses as much as digits as its factorization.

23578487089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 23578487089 in words is "twenty-three billion, five hundred seventy-eight million, four hundred eighty-seven thousand, eighty-nine".