25718874733 has 2 divisors, whose sum is σ = 25718874734. Its totient is φ = 25718874732.

The previous prime is 25718874703. The next prime is 25718874761. The reversal of 25718874733 is 33747881752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14766624324 + 10952250409 = 121518^2 + 104653^2 .

It is a cyclic number.

It is not a de Polignac number, because 25718874733 - 2¹³ = 25718866541 is a prime.

It is a super-2 number, since 2×25718874733² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25718874703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12859437366 + 12859437367.

It is an arithmetic number, because the mean of its divisors is an integer number (12859437367).

Almost surely, 2^25718874733 is an apocalyptic number.

It is an amenable number.

25718874733 is a deficient number, since it is larger than the sum of its proper divisors (1).

25718874733 is an equidigital number, since it uses as much as digits as its factorization.

25718874733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7902720, while the sum is 55.

The spelling of 25718874733 in words is "twenty-five billion, seven hundred eighteen million, eight hundred seventy-four thousand, seven hundred thirty-three".