27698660275 has 48 divisors (see below), whose sum is σ = 42474781440. Its totient is φ = 17616182400.

The previous prime is 27698660273. The next prime is 27698660323. The reversal of 27698660275 is 57206689672.

It is not a de Polignac number, because 27698660275 - 2¹ = 27698660273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27698660273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135967 + ... + 271816.

It is an arithmetic number, because the mean of its divisors is an integer number (884891280).

Almost surely, 2^27698660275 is an apocalyptic number.

27698660275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27698660275 is a deficient number, since it is larger than the sum of its proper divisors (14776121165).

27698660275 is a wasteful number, since it uses less digits than its factorization.

27698660275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407836 (or 407831 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 27698660275 in words is "twenty-seven billion, six hundred ninety-eight million, six hundred sixty thousand, two hundred seventy-five".