27382878816 has 36 divisors (see below), whose sum is σ = 71884313172. Its totient is φ = 9127085824.

The previous prime is 27382878797. The next prime is 27382878871. The reversal of 27382878816 is 61887828372.

It is a self number, because there is not a number n which added to its sum of digits gives 27382878816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1612900 + ... + 1629788.

It is an arithmetic number, because the mean of its divisors is an integer number (1996786477).

Almost surely, 2^27382878816 is an apocalyptic number.

It is an amenable number.

27382878816 is an abundant number, since it is smaller than the sum of its proper divisors (44501434356).

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

27382878816 is an frugal number, since it uses more digits than its factorization.

27382878816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33791 (or 16894 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 60.

The spelling of 27382878816 in words is "twenty-seven billion, three hundred eighty-two million, eight hundred seventy-eight thousand, eight hundred sixteen".