23575696987 has 2 divisors, whose sum is σ = 23575696988. Its totient is φ = 23575696986.

The previous prime is 23575696927. The next prime is 23575696993. The reversal of 23575696987 is 78969657532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23575696987 is a prime.

It is not a weakly prime, because it can be changed into another prime (23575696927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11787848493 + 11787848494.

It is an arithmetic number, because the mean of its divisors is an integer number (11787848494).

Almost surely, 2^23575696987 is an apocalyptic number.

23575696987 is a deficient number, since it is larger than the sum of its proper divisors (1).

23575696987 is an equidigital number, since it uses as much as digits as its factorization.

23575696987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171460800, while the sum is 67.

The spelling of 23575696987 in words is "twenty-three billion, five hundred seventy-five million, six hundred ninety-six thousand, nine hundred eighty-seven".