25347642863 has 2 divisors, whose sum is σ = 25347642864. Its totient is φ = 25347642862.

The previous prime is 25347642847. The next prime is 25347642907. The reversal of 25347642863 is 36824674352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25347642863 - 2⁴ = 25347642847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25347642833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12673821431 + 12673821432.

It is an arithmetic number, because the mean of its divisors is an integer number (12673821432).

Almost surely, 2^25347642863 is an apocalyptic number.

25347642863 is a deficient number, since it is larger than the sum of its proper divisors (1).

25347642863 is an equidigital number, since it uses as much as digits as its factorization.

25347642863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 50.

The spelling of 25347642863 in words is "twenty-five billion, three hundred forty-seven million, six hundred forty-two thousand, eight hundred sixty-three".