27884090858 has 32 divisors (see below), whose sum is σ = 45541694016. Its totient is φ = 12727749888.

The previous prime is 27884090833. The next prime is 27884090873. The reversal of 27884090858 is 85809048872.

It is a super-4 number, since 4×27884090858⁴ (a number of 43 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27884090797 and 27884090806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1361885 + ... + 1382207.

It is an arithmetic number, because the mean of its divisors is an integer number (1423177938).

Almost surely, 2^27884090858 is an apocalyptic number.

27884090858 is a deficient number, since it is larger than the sum of its proper divisors (17657603158).

27884090858 is a wasteful number, since it uses less digits than its factorization.

27884090858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20918.

The product of its (nonzero) digits is 10321920, while the sum is 59.

The spelling of 27884090858 in words is "twenty-seven billion, eight hundred eighty-four million, ninety thousand, eight hundred fifty-eight".