80802700265890 has 8 divisors (see below), whose sum is σ = 145444860478620. Its totient is φ = 32321080106352.

The previous prime is 80802700265851. The next prime is 80802700265993. The reversal of 80802700265890 is 9856200720808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80313124374081 + 489575891809 = 8961759^2 + 699697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4040135013285 + ... + 4040135013304.

Almost surely, 2^{80802700265890} is an apocalyptic number.

80802700265890 is a deficient number, since it is larger than the sum of its proper divisors (64642160212730).

80802700265890 is a wasteful number, since it uses less digits than its factorization.

80802700265890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080270026596.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 80802700265890 in words is "eighty trillion, eight hundred two billion, seven hundred million, two hundred sixty-five thousand, eight hundred ninety".