23576990977 has 2 divisors, whose sum is σ = 23576990978. Its totient is φ = 23576990976.

The previous prime is 23576990971. The next prime is 23576991013. The reversal of 23576990977 is 77909967532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22080771216 + 1496219761 = 148596^2 + 38681^2 .

It is a cyclic number.

It is not a de Polignac number, because 23576990977 - 2⁷ = 23576990849 is a prime.

It is not a weakly prime, because it can be changed into another prime (23576990971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11788495488 + 11788495489.

It is an arithmetic number, because the mean of its divisors is an integer number (11788495489).

Almost surely, 2^23576990977 is an apocalyptic number.

It is an amenable number.

23576990977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23576990977 is an equidigital number, since it uses as much as digits as its factorization.

23576990977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45008460, while the sum is 64.

The spelling of 23576990977 in words is "twenty-three billion, five hundred seventy-six million, nine hundred ninety thousand, nine hundred seventy-seven".