27840234912 has 48 divisors (see below), whose sum is σ = 83520706752. Its totient is φ = 7954352640.

The previous prime is 27840234869. The next prime is 27840234941. The reversal of 27840234912 is 21943204872.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20713789 + ... + 20715132.

It is an arithmetic number, because the mean of its divisors is an integer number (1740014724).

Almost surely, 2^27840234912 is an apocalyptic number.

It is an amenable number.

27840234912 is an abundant number, since it is smaller than the sum of its proper divisors (55680471840).

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

27840234912 is a wasteful number, since it uses less digits than its factorization.

27840234912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41428941 (or 41428933 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 27840234912 in words is "twenty-seven billion, eight hundred forty million, two hundred thirty-four thousand, nine hundred twelve".