804981201808 has 120 divisors (see below), whose sum is σ = 1826564863200. Its totient is φ = 342663229440.

The previous prime is 804981201803. The next prime is 804981201841. The reversal of 804981201808 is 808102189408.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (804981201803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104552743 + ... + 104560441.

It is an arithmetic number, because the mean of its divisors is an integer number (15221373860).

Almost surely, 2^804981201808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804981201808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913282431600).

804981201808 is an abundant number, since it is smaller than the sum of its proper divisors (1021583661392).

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

804981201808 is a wasteful number, since it uses less digits than its factorization.

804981201808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605 (or 8592 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 49.

The spelling of 804981201808 in words is "eight hundred four billion, nine hundred eighty-one million, two hundred one thousand, eight hundred eight".