25749884773 has 2 divisors, whose sum is σ = 25749884774. Its totient is φ = 25749884772.

The previous prime is 25749884753. The next prime is 25749884837. The reversal of 25749884773 is 37748894752.

It is an a-pointer prime, because the next prime (25749884837) can be obtained adding 25749884773 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21861988164 + 3887896609 = 147858^2 + 62353^2 .

It is a cyclic number.

It is not a de Polignac number, because 25749884773 - 2⁹ = 25749884261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25749884753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874942386 + 12874942387.

It is an arithmetic number, because the mean of its divisors is an integer number (12874942387).

Almost surely, 2^25749884773 is an apocalyptic number.

It is an amenable number.

25749884773 is a deficient number, since it is larger than the sum of its proper divisors (1).

25749884773 is an equidigital number, since it uses as much as digits as its factorization.

25749884773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94832640, while the sum is 64.

The spelling of 25749884773 in words is "twenty-five billion, seven hundred forty-nine million, eight hundred eighty-four thousand, seven hundred seventy-three".