27690800231 has 2 divisors, whose sum is σ = 27690800232. Its totient is φ = 27690800230.

The previous prime is 27690800209. The next prime is 27690800281. The reversal of 27690800231 is 13200809672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27690800231 - 2¹⁰ = 27690799207 is a prime.

It is a super-2 number, since 2×27690800231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27690800201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13845400115 + 13845400116.

It is an arithmetic number, because the mean of its divisors is an integer number (13845400116).

Almost surely, 2^27690800231 is an apocalyptic number.

27690800231 is a deficient number, since it is larger than the sum of its proper divisors (1).

27690800231 is an equidigital number, since it uses as much as digits as its factorization.

27690800231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 27690800231 in words is "twenty-seven billion, six hundred ninety million, eight hundred thousand, two hundred thirty-one".