80699897828 has 24 divisors (see below), whose sum is σ = 154447673184. Its totient is φ = 36590288000.

The previous prime is 80699897827. The next prime is 80699897843. The reversal of 80699897828 is 82879899608.

It is not an unprimeable number, because it can be changed into a prime (80699897827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2269250 + ... + 2304537.

It is an arithmetic number, because the mean of its divisors is an integer number (6435319716).

Almost surely, 2^80699897828 is an apocalyptic number.

It is an amenable number.

80699897828 is a deficient number, since it is larger than the sum of its proper divisors (73747775356).

80699897828 is a wasteful number, since it uses less digits than its factorization.

80699897828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574203 (or 4574201 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 74.

The spelling of 80699897828 in words is "eighty billion, six hundred ninety-nine million, eight hundred ninety-seven thousand, eight hundred twenty-eight".