27818995008 has 252 divisors, whose sum is σ = 90376077312. Its totient is φ = 7529034240.

The previous prime is 27818994997. The next prime is 27818995013. The reversal of 27818995008 is 80059981872.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3392193 + ... + 3400383.

Almost surely, 2^27818995008 is an apocalyptic number.

27818995008 is a gapful number since it is divisible by the number (28) 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 27818995008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45188038656).

27818995008 is an abundant number, since it is smaller than the sum of its proper divisors (62557082304).

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

27818995008 is a wasteful number, since it uses less digits than its factorization.

27818995008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258 (or 8222 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 57.

The spelling of 27818995008 in words is "twenty-seven billion, eight hundred eighteen million, nine hundred ninety-five thousand, eight".