25674614789 has 2 divisors, whose sum is σ = 25674614790. Its totient is φ = 25674614788.

The previous prime is 25674614783. The next prime is 25674614809. The reversal of 25674614789 is 98741647652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24568054564 + 1106560225 = 156742^2 + 33265^2 .

It is a cyclic number.

It is not a de Polignac number, because 25674614789 - 2⁴ = 25674614773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25674614783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12837307394 + 12837307395.

It is an arithmetic number, because the mean of its divisors is an integer number (12837307395).

Almost surely, 2^25674614789 is an apocalyptic number.

It is an amenable number.

25674614789 is a deficient number, since it is larger than the sum of its proper divisors (1).

25674614789 is an equidigital number, since it uses as much as digits as its factorization.

25674614789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 25674614789 in words is "twenty-five billion, six hundred seventy-four million, six hundred fourteen thousand, seven hundred eighty-nine".