25824769793 has 2 divisors, whose sum is σ = 25824769794. Its totient is φ = 25824769792.

The previous prime is 25824769781. The next prime is 25824769801. The reversal of 25824769793 is 39796742852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13158842944 + 12665926849 = 114712^2 + 112543^2 .

It is a cyclic number.

It is not a de Polignac number, because 25824769793 - 2¹² = 25824765697 is a prime.

It is a super-2 number, since 2×25824769793² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25824769193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12912384896 + 12912384897.

It is an arithmetic number, because the mean of its divisors is an integer number (12912384897).

Almost surely, 2^25824769793 is an apocalyptic number.

It is an amenable number.

25824769793 is a deficient number, since it is larger than the sum of its proper divisors (1).

25824769793 is an equidigital number, since it uses as much as digits as its factorization.

25824769793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 62.

The spelling of 25824769793 in words is "twenty-five billion, eight hundred twenty-four million, seven hundred sixty-nine thousand, seven hundred ninety-three".