27900392873 has 2 divisors, whose sum is σ = 27900392874. Its totient is φ = 27900392872.

The previous prime is 27900392833. The next prime is 27900392879. The reversal of 27900392873 is 37829300972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24064696384 + 3835696489 = 155128^2 + 61933^2 .

It is a cyclic number.

It is not a de Polignac number, because 27900392873 - 2¹⁸ = 27900130729 is a prime.

It is not a weakly prime, because it can be changed into another prime (27900392879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13950196436 + 13950196437.

It is an arithmetic number, because the mean of its divisors is an integer number (13950196437).

Almost surely, 2^27900392873 is an apocalyptic number.

It is an amenable number.

27900392873 is a deficient number, since it is larger than the sum of its proper divisors (1).

27900392873 is an equidigital number, since it uses as much as digits as its factorization.

27900392873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 27900392873 in words is "twenty-seven billion, nine hundred million, three hundred ninety-two thousand, eight hundred seventy-three".