27704439425 has 12 divisors (see below), whose sum is σ = 36996082620. Its totient is φ = 20458662720.

The previous prime is 27704439407. The next prime is 27704439439. The reversal of 27704439425 is 52493440772.

It can be written as a sum of positive squares in 6 ways, for example, as 26460736 + 27677978689 = 5144^2 + 166367^2 .

It is not a de Polignac number, because 27704439425 - 2⁶ = 27704439361 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27704439425.

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, 42621890 + ... + 42622539.

It is an arithmetic number, because the mean of its divisors is an integer number (3083006885).

Almost surely, 2^27704439425 is an apocalyptic number.

27704439425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27704439425 is a deficient number, since it is larger than the sum of its proper divisors (9291643195).

27704439425 is a wasteful number, since it uses less digits than its factorization.

27704439425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85244452 (or 85244447 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 27704439425 in words is "twenty-seven billion, seven hundred four million, four hundred thirty-nine thousand, four hundred twenty-five".