27775999999 has 24 divisors (see below), whose sum is σ = 31086090000. Its totient is φ = 24792577920.

The previous prime is 27775999991. The next prime is 27776000017. The reversal of 27775999999 is 99999957772.

It is not a de Polignac number, because 27775999999 - 2³ = 27775999991 is a prime.

It is a Duffinian number.

27775999999 is a modest number, since divided by 999999 gives 27775 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27775999991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7486957 + ... + 7490665.

It is an arithmetic number, because the mean of its divisors is an integer number (1295253750).

Almost surely, 2^27775999999 is an apocalyptic number.

27775999999 is a deficient number, since it is larger than the sum of its proper divisors (3310090001).

27775999999 is a wasteful number, since it uses less digits than its factorization.

27775999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4828 counting only the distinct ones).

The product of its digits is 1822842630, while the sum is 82.

The spelling of 27775999999 in words is "twenty-seven billion, seven hundred seventy-five million, nine hundred ninety-nine thousand, nine hundred ninety-nine".