808118478 has 128 divisors (see below), whose sum is σ = 1961164800. Its totient is φ = 245916000.

The previous prime is 808118471. The next prime is 808118491. The reversal of 808118478 is 874811808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808118471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5351703 + ... + 5351853.

It is an arithmetic number, because the mean of its divisors is an integer number (15321600).

Almost surely, 2^808118478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808118478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980582400).

808118478 is an abundant number, since it is smaller than the sum of its proper divisors (1153046322).

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

808118478 is a wasteful number, since it uses less digits than its factorization.

808118478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The square root of 808118478 is about 28427.4247514614. The cubic root of 808118478 is about 931.4474235250.

The spelling of 808118478 in words is "eight hundred eight million, one hundred eighteen thousand, four hundred seventy-eight".