27490908893 has 12 divisors (see below), whose sum is σ = 32759203932. Its totient is φ = 22988911680.

The previous prime is 27490908883. The next prime is 27490908899. The reversal of 27490908893 is 39880909472.

It can be written as a sum of positive squares in 2 ways, for example, as 628354489 + 26862554404 = 25067^2 + 163898^2 .

It is not a de Polignac number, because 27490908893 - 2⁴ = 27490908877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27490908899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6839930 + ... + 6843947.

It is an arithmetic number, because the mean of its divisors is an integer number (2729933661).

Almost surely, 2^27490908893 is an apocalyptic number.

It is an amenable number.

27490908893 is a deficient number, since it is larger than the sum of its proper divisors (5268295039).

27490908893 is a wasteful number, since it uses less digits than its factorization.

27490908893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13683932 (or 13683925 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 27490908893 in words is "twenty-seven billion, four hundred ninety million, nine hundred eight thousand, eight hundred ninety-three".