27494992831 has 2 divisors, whose sum is σ = 27494992832. Its totient is φ = 27494992830.

The previous prime is 27494992817. The next prime is 27494992841. The reversal of 27494992831 is 13829949472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27494992831 - 2⁷ = 27494992703 is a prime.

It is a super-2 number, since 2×27494992831² (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 (27494992841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13747496415 + 13747496416.

It is an arithmetic number, because the mean of its divisors is an integer number (13747496416).

Almost surely, 2^27494992831 is an apocalyptic number.

27494992831 is a deficient number, since it is larger than the sum of its proper divisors (1).

27494992831 is an equidigital number, since it uses as much as digits as its factorization.

27494992831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The spelling of 27494992831 in words is "twenty-seven billion, four hundred ninety-four million, nine hundred ninety-two thousand, eight hundred thirty-one".