27824881018 has 64 divisors (see below), whose sum is σ = 48422707200. Its totient is φ = 11859013440.

The previous prime is 27824881001. The next prime is 27824881031. The reversal of 27824881018 is 81018842872.

It is a happy number.

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, 19335543 + ... + 19336981.

It is an arithmetic number, because the mean of its divisors is an integer number (756604800).

Almost surely, 2^27824881018 is an apocalyptic number.

27824881018 is a deficient number, since it is larger than the sum of its proper divisors (20597826182).

27824881018 is a wasteful number, since it uses less digits than its factorization.

27824881018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its (nonzero) digits is 458752, while the sum is 49.

The spelling of 27824881018 in words is "twenty-seven billion, eight hundred twenty-four million, eight hundred eighty-one thousand, eighteen".