27980611292 has 6 divisors (see below), whose sum is σ = 48966069768. Its totient is φ = 13990305644.

The previous prime is 27980611283. The next prime is 27980611297. The reversal of 27980611292 is 29211608972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27980611297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497576408 + ... + 3497576415.

It is an arithmetic number, because the mean of its divisors is an integer number (8161011628).

Almost surely, 2^27980611292 is an apocalyptic number.

It is an amenable number.

27980611292 is a deficient number, since it is larger than the sum of its proper divisors (20985458476).

27980611292 is a wasteful number, since it uses less digits than its factorization.

27980611292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995152827 (or 6995152825 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 27980611292 in words is "twenty-seven billion, nine hundred eighty million, six hundred eleven thousand, two hundred ninety-two".