25673104993 has 2 divisors, whose sum is σ = 25673104994. Its totient is φ = 25673104992.

The previous prime is 25673104967. The next prime is 25673105089. The reversal of 25673104993 is 39940137652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25660195344 + 12909649 = 160188^2 + 3593^2 .

It is a cyclic number.

It is not a de Polignac number, because 25673104993 - 2²¹ = 25671007841 is a prime.

It is not a weakly prime, because it can be changed into another prime (25673174993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836552496 + 12836552497.

It is an arithmetic number, because the mean of its divisors is an integer number (12836552497).

Almost surely, 2^25673104993 is an apocalyptic number.

It is an amenable number.

25673104993 is a deficient number, since it is larger than the sum of its proper divisors (1).

25673104993 is an equidigital number, since it uses as much as digits as its factorization.

25673104993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 25673104993 in words is "twenty-five billion, six hundred seventy-three million, one hundred four thousand, nine hundred ninety-three".