27283872840 has 128 divisors (see below), whose sum is σ = 94403232000. Its totient is φ = 6179079168.

The previous prime is 27283872827. The next prime is 27283872901. The reversal of 27283872840 is 4827838272.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57435 + ... + 240554.

It is an arithmetic number, because the mean of its divisors is an integer number (737525250).

Almost surely, 2^27283872840 is an apocalyptic number.

27283872840 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 27283872840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47201616000).

27283872840 is an abundant number, since it is smaller than the sum of its proper divisors (67119359160).

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

27283872840 is a wasteful number, since it uses less digits than its factorization.

27283872840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298119 (or 298115 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 27283872840 in words is "twenty-seven billion, two hundred eighty-three million, eight hundred seventy-two thousand, eight hundred forty".