27808436124 has 36 divisors (see below), whose sum is σ = 80335482864. Its totient is φ = 7945267392.

The previous prime is 27808436101. The next prime is 27808436141. The reversal of 27808436124 is 42163480872.

It is a happy number.

27808436124 is a `hidden beast` number, since 27 + 8 + 0 + 8 + 4 + 3 + 612 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 27808436124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55175217 + ... + 55175720.

Almost surely, 2^27808436124 is an apocalyptic number.

It is an amenable number.

27808436124 is an abundant number, since it is smaller than the sum of its proper divisors (52527046740).

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

27808436124 is a wasteful number, since it uses less digits than its factorization.

27808436124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110350954 (or 110350949 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 27808436124 in words is "twenty-seven billion, eight hundred eight million, four hundred thirty-six thousand, one hundred twenty-four".