25827470899 has 2 divisors, whose sum is σ = 25827470900. Its totient is φ = 25827470898.

The previous prime is 25827470897. The next prime is 25827470923. The reversal of 25827470899 is 99807472852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25827470899 - 2¹ = 25827470897 is a prime.

Together with 25827470897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25827470897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12913735449 + 12913735450.

It is an arithmetic number, because the mean of its divisors is an integer number (12913735450).

Almost surely, 2^25827470899 is an apocalyptic number.

25827470899 is a deficient number, since it is larger than the sum of its proper divisors (1).

25827470899 is an equidigital number, since it uses as much as digits as its factorization.

25827470899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 25827470899 in words is "twenty-five billion, eight hundred twenty-seven million, four hundred seventy thousand, eight hundred ninety-nine".