27491844799 has 2 divisors, whose sum is σ = 27491844800. Its totient is φ = 27491844798.

The previous prime is 27491844713. The next prime is 27491844811. The reversal of 27491844799 is 99744819472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27491844799 - 2¹¹ = 27491842751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27491844799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27491824799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13745922399 + 13745922400.

It is an arithmetic number, because the mean of its divisors is an integer number (13745922400).

Almost surely, 2^27491844799 is an apocalyptic number.

27491844799 is a deficient number, since it is larger than the sum of its proper divisors (1).

27491844799 is an equidigital number, since it uses as much as digits as its factorization.

27491844799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 64.

The spelling of 27491844799 in words is "twenty-seven billion, four hundred ninety-one million, eight hundred forty-four thousand, seven hundred ninety-nine".