23421527887 has 2 divisors, whose sum is σ = 23421527888. Its totient is φ = 23421527886.

The previous prime is 23421527851. The next prime is 23421527903. The reversal of 23421527887 is 78872512432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23421527887 - 2²⁷ = 23287310159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23421527887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421527837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710763943 + 11710763944.

It is an arithmetic number, because the mean of its divisors is an integer number (11710763944).

Almost surely, 2^23421527887 is an apocalyptic number.

23421527887 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421527887 is an equidigital number, since it uses as much as digits as its factorization.

23421527887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1505280, while the sum is 49.

The spelling of 23421527887 in words is "twenty-three billion, four hundred twenty-one million, five hundred twenty-seven thousand, eight hundred eighty-seven".