27782644325 has 12 divisors (see below), whose sum is σ = 34628984868. Its totient is φ = 22110950400.

The previous prime is 27782644319. The next prime is 27782644363. The reversal of 27782644325 is 52344628772.

It can be written as a sum of positive squares in 6 ways, for example, as 82700836 + 27699943489 = 9094^2 + 166433^2 .

It is not a de Polignac number, because 27782644325 - 2¹² = 27782640229 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2874206 + ... + 2883855.

It is an arithmetic number, because the mean of its divisors is an integer number (2885748739).

Almost surely, 2^27782644325 is an apocalyptic number.

27782644325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27782644325 is a deficient number, since it is larger than the sum of its proper divisors (6846340543).

27782644325 is a wasteful number, since it uses less digits than its factorization.

27782644325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758264 (or 5758259 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 50.

The spelling of 27782644325 in words is "twenty-seven billion, seven hundred eighty-two million, six hundred forty-four thousand, three hundred twenty-five".