27080999820 has 432 divisors, whose sum is σ = 102548496960. Its totient is φ = 5659186176.

The previous prime is 27080999819. The next prime is 27080999821. The reversal of 27080999820 is 2899908072.

It is an interprime number because it is at equal distance from previous prime (27080999819) and next prime (27080999821).

It is not an unprimeable number, because it can be changed into a prime (27080999821) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13189914 + ... + 13191966.

It is an arithmetic number, because the mean of its divisors is an integer number (237380780).

Almost surely, 2^27080999820 is an apocalyptic number.

27080999820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27080999820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51274248480).

27080999820 is an abundant number, since it is smaller than the sum of its proper divisors (75467497140).

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

27080999820 is a wasteful number, since it uses less digits than its factorization.

27080999820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 27080999820 in words is "twenty-seven billion, eighty million, nine hundred ninety-nine thousand, eight hundred twenty".