818780796 has 72 divisors (see below), whose sum is σ = 2148654144. Its totient is φ = 262707840.

The previous prime is 818780789. The next prime is 818780821. The reversal of 818780796 is 697087818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99246 + ... + 107178.

Almost surely, 2^818780796 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 818780796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074327072).

818780796 is an abundant number, since it is smaller than the sum of its proper divisors (1329873348).

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

818780796 is a wasteful number, since it uses less digits than its factorization.

818780796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051 (or 8046 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 818780796 is about 28614.3459823914. The cubic root of 818780796 is about 935.5260448382.

The spelling of 818780796 in words is "eight hundred eighteen million, seven hundred eighty thousand, seven hundred ninety-six".