27869689700 has 18 divisors (see below), whose sum is σ = 60477226866. Its totient is φ = 11147875840.

The previous prime is 27869689691. The next prime is 27869689739. The reversal of 27869689700 is 798696872.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4212788836 + 23656900864 = 64906^2 + 153808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139348349 + ... + 139348548.

It is an arithmetic number, because the mean of its divisors is an integer number (3359845937).

Almost surely, 2^27869689700 is an apocalyptic number.

27869689700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27869689700 is an abundant number, since it is smaller than the sum of its proper divisors (32607537166).

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

27869689700 is a wasteful number, since it uses less digits than its factorization.

27869689700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278696911 (or 278696904 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 27869689700 in words is "twenty-seven billion, eight hundred sixty-nine million, six hundred eighty-nine thousand, seven hundred".