23585975947 has 2 divisors, whose sum is σ = 23585975948. Its totient is φ = 23585975946.

The previous prime is 23585975921. The next prime is 23585975977. The reversal of 23585975947 is 74957958532.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23585975947 is a prime.

It is a super-2 number, since 2×23585975947² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23585975977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11792987973 + 11792987974.

It is an arithmetic number, because the mean of its divisors is an integer number (11792987974).

Almost surely, 2^23585975947 is an apocalyptic number.

23585975947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23585975947 is an equidigital number, since it uses as much as digits as its factorization.

23585975947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256000, while the sum is 64.

The spelling of 23585975947 in words is "twenty-three billion, five hundred eighty-five million, nine hundred seventy-five thousand, nine hundred forty-seven".