27490554433 has 2 divisors, whose sum is σ = 27490554434. Its totient is φ = 27490554432.

The previous prime is 27490554419. The next prime is 27490554457. The reversal of 27490554433 is 33445509472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27262302769 + 228251664 = 165113^2 + 15108^2 .

It is a cyclic number.

It is not a de Polignac number, because 27490554433 - 2²¹ = 27488457281 is a prime.

It is a super-3 number, since 3×27490554433³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (27490554733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13745277216 + 13745277217.

It is an arithmetic number, because the mean of its divisors is an integer number (13745277217).

Almost surely, 2^27490554433 is an apocalyptic number.

It is an amenable number.

27490554433 is a deficient number, since it is larger than the sum of its proper divisors (1).

27490554433 is an equidigital number, since it uses as much as digits as its factorization.

27490554433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 27490554433 in words is "twenty-seven billion, four hundred ninety million, five hundred fifty-four thousand, four hundred thirty-three".