80025817890 has 32 divisors (see below), whose sum is σ = 192247963776. Its totient is φ = 21319551360.

The previous prime is 80025817889. The next prime is 80025817909. The reversal of 80025817890 is 9871852008.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260166 + ... + 1322145.

It is an arithmetic number, because the mean of its divisors is an integer number (6007748868).

Almost surely, 2^80025817890 is an apocalyptic number.

80025817890 is an abundant number, since it is smaller than the sum of its proper divisors (112222145886).

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

80025817890 is a wasteful number, since it uses less digits than its factorization.

80025817890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583354.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 80025817890 in words is "eighty billion, twenty-five million, eight hundred seventeen thousand, eight hundred ninety".