800720899308 has 96 divisors (see below), whose sum is σ = 2278226603520. Its totient is φ = 241189686720.

The previous prime is 800720899301. The next prime is 800720899421. The reversal of 800720899308 is 803998027008.

It is a super-2 number, since 2×800720899308² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (800720899301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1819591 + ... + 2216382.

It is an arithmetic number, because the mean of its divisors is an integer number (23731527120).

Almost surely, 2^800720899308 is an apocalyptic number.

It is an amenable number.

800720899308 is an abundant number, since it is smaller than the sum of its proper divisors (1477505704212).

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

800720899308 is a wasteful number, since it uses less digits than its factorization.

800720899308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036164 (or 4036156 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 800720899308 in words is "eight hundred billion, seven hundred twenty million, eight hundred ninety-nine thousand, three hundred eight".