25653861326383 has 2 divisors, whose sum is σ = 25653861326384. Its totient is φ = 25653861326382.

The previous prime is 25653861326381. The next prime is 25653861326497. The reversal of 25653861326383 is 38362316835652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25653861326383 - 2¹ = 25653861326381 is a prime.

Together with 25653861326381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25653861326381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12826930663191 + 12826930663192.

It is an arithmetic number, because the mean of its divisors is an integer number (12826930663192).

Almost surely, 2^{25653861326383} is an apocalyptic number.

25653861326383 is a deficient number, since it is larger than the sum of its proper divisors (1).

25653861326383 is an equidigital number, since it uses as much as digits as its factorization.

25653861326383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111974400, while the sum is 61.

The spelling of 25653861326383 in words is "twenty-five trillion, six hundred fifty-three billion, eight hundred sixty-one million, three hundred twenty-six thousand, three hundred eighty-three".