23447827147 has 2 divisors, whose sum is σ = 23447827148. Its totient is φ = 23447827146.

The previous prime is 23447827093. The next prime is 23447827159. The reversal of 23447827147 is 74172874432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23447827147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23447827147.

It is not a weakly prime, because it can be changed into another prime (23447825147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11723913573 + 11723913574.

It is an arithmetic number, because the mean of its divisors is an integer number (11723913574).

Almost surely, 2^23447827147 is an apocalyptic number.

23447827147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23447827147 is an equidigital number, since it uses as much as digits as its factorization.

23447827147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2107392, while the sum is 49.

The spelling of 23447827147 in words is "twenty-three billion, four hundred forty-seven million, eight hundred twenty-seven thousand, one hundred forty-seven".