27808075500 has 96 divisors (see below), whose sum is σ = 81493583808. Its totient is φ = 7368192000.

The previous prime is 27808075489. The next prime is 27808075511. The reversal of 27808075500 is 557080872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27808075489) and next prime (27808075511).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 176460 + ... + 294540.

It is an arithmetic number, because the mean of its divisors is an integer number (848891498).

Almost surely, 2^27808075500 is an apocalyptic number.

27808075500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27808075500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40746791904).

27808075500 is an abundant number, since it is smaller than the sum of its proper divisors (53685508308).

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

27808075500 is a wasteful number, since it uses less digits than its factorization.

27808075500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118260 (or 118248 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 27808075500 in words is "twenty-seven billion, eight hundred eight million, seventy-five thousand, five hundred".