27198788725 has 12 divisors (see below), whose sum is σ = 33749850784. Its totient is φ = 21743964720.

The previous prime is 27198788719. The next prime is 27198788737. The reversal of 27198788725 is 52788789172.

It is not a de Polignac number, because 27198788725 - 2¹⁷ = 27198657653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339759 + ... + 412108.

Almost surely, 2^27198788725 is an apocalyptic number.

27198788725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27198788725 is a deficient number, since it is larger than the sum of its proper divisors (6551062059).

27198788725 is a wasteful number, since it uses less digits than its factorization.

27198788725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753324 (or 753319 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 64.

The spelling of 27198788725 in words is "twenty-seven billion, one hundred ninety-eight million, seven hundred eighty-eight thousand, seven hundred twenty-five".