27973620131 has 2 divisors, whose sum is σ = 27973620132. Its totient is φ = 27973620130.

The previous prime is 27973620107. The next prime is 27973620137. The reversal of 27973620131 is 13102637972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27973620131 - 2¹⁴ = 27973603747 is a prime.

It is a super-2 number, since 2×27973620131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27973620137) by changing a digit.

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 as a sum of consecutive naturals, namely, 13986810065 + 13986810066.

It is an arithmetic number, because the mean of its divisors is an integer number (13986810066).

Almost surely, 2^27973620131 is an apocalyptic number.

27973620131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27973620131 is an equidigital number, since it uses as much as digits as its factorization.

27973620131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 27973620131 in words is "twenty-seven billion, nine hundred seventy-three million, six hundred twenty thousand, one hundred thirty-one".