27990769080 has 64 divisors (see below), whose sum is σ = 87623285760. Its totient is φ = 7139673728.

The previous prime is 27990768997. The next prime is 27990769129. The reversal of 27990769080 is 8096709972.

It is a self number, because there is not a number n which added to its sum of digits gives 27990769080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5068032 + ... + 5073551.

It is an arithmetic number, because the mean of its divisors is an integer number (1369113840).

Almost surely, 2^27990769080 is an apocalyptic number.

27990769080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27990769080 is an abundant number, since it is smaller than the sum of its proper divisors (59632516680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27990769080 is a wasteful number, since it uses less digits than its factorization.

27990769080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141620 (or 10141616 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 27990769080 in words is "twenty-seven billion, nine hundred ninety million, seven hundred sixty-nine thousand, eighty".