80556028262287 has 4 divisors (see below), whose sum is σ = 84795819223480. Its totient is φ = 76316237301096.

The previous prime is 80556028262267. The next prime is 80556028262321. The reversal of 80556028262287 is 78226282065508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80556028262287 - 2⁷ = 80556028262159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80556028262267) 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, 2119895480568 + ... + 2119895480605.

It is an arithmetic number, because the mean of its divisors is an integer number (21198954805870).

Almost surely, 2^{80556028262287} is an apocalyptic number.

80556028262287 is a deficient number, since it is larger than the sum of its proper divisors (4239790961193).

80556028262287 is a wasteful number, since it uses less digits than its factorization.

80556028262287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239790961192.

The product of its (nonzero) digits is 51609600, while the sum is 61.

The spelling of 80556028262287 in words is "eighty trillion, five hundred fifty-six billion, twenty-eight million, two hundred sixty-two thousand, two hundred eighty-seven".