27730298725 has 12 divisors (see below), whose sum is σ = 34396358884. Its totient is φ = 22177278720.

The previous prime is 27730298723. The next prime is 27730298737. The reversal of 27730298725 is 52789203772.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15374241 + 27714924484 = 3921^2 + 166478^2 .

It is not a de Polignac number, because 27730298725 - 2¹ = 27730298723 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730298723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91974 + ... + 252823.

Almost surely, 2^27730298725 is an apocalyptic number.

27730298725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27730298725 is a deficient number, since it is larger than the sum of its proper divisors (6666060159).

27730298725 is a wasteful number, since it uses less digits than its factorization.

27730298725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348024 (or 348019 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 27730298725 in words is "twenty-seven billion, seven hundred thirty million, two hundred ninety-eight thousand, seven hundred twenty-five".