80898810856 has 16 divisors (see below), whose sum is σ = 152532676800. Its totient is φ = 40223430384.

The previous prime is 80898810851. The next prime is 80898810887. The reversal of 80898810856 is 65801889808.

It is a junction number, because it is equal to n+sod(n) for n = 80898810794 and 80898810803.

It is not an unprimeable number, because it can be changed into a prime (80898810851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28245360 + ... + 28248223.

It is an arithmetic number, because the mean of its divisors is an integer number (9533292300).

Almost surely, 2^80898810856 is an apocalyptic number.

It is an amenable number.

80898810856 is a deficient number, since it is larger than the sum of its proper divisors (71633865944).

80898810856 is a wasteful number, since it uses less digits than its factorization.

80898810856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56493768 (or 56493764 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 61.

The spelling of 80898810856 in words is "eighty billion, eight hundred ninety-eight million, eight hundred ten thousand, eight hundred fifty-six".