27825777984 has 28 divisors (see below), whose sum is σ = 73622371424. Its totient is φ = 9275259264.

The previous prime is 27825777979. The next prime is 27825778009. The reversal of 27825777984 is 48977752872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72462772 + ... + 72463155.

It is an arithmetic number, because the mean of its divisors is an integer number (2629370408).

Almost surely, 2^27825777984 is an apocalyptic number.

27825777984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27825777984 is an abundant number, since it is smaller than the sum of its proper divisors (45796593440).

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

27825777984 is a wasteful number, since it uses less digits than its factorization.

27825777984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144925942 (or 144925932 counting only the distinct ones).

The product of its digits is 110638080, while the sum is 66.

The spelling of 27825777984 in words is "twenty-seven billion, eight hundred twenty-five million, seven hundred seventy-seven thousand, nine hundred eighty-four".