80569206987 has 8 divisors (see below), whose sum is σ = 110890951680. Its totient is φ = 51980133480.

The previous prime is 80569206953. The next prime is 80569206997. The reversal of 80569206987 is 78960296508.

It is a happy number.

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

It is not a de Polignac number, because 80569206987 - 2⁷ = 80569206859 is a prime.

It is a super-2 number, since 2×80569206987² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80569206987.

It is not an unprimeable number, because it can be changed into a prime (80569206917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433167687 + ... + 433167872.

It is an arithmetic number, because the mean of its divisors is an integer number (13861368960).

Almost surely, 2^80569206987 is an apocalyptic number.

80569206987 is a deficient number, since it is larger than the sum of its proper divisors (30321744693).

80569206987 is a wasteful number, since it uses less digits than its factorization.

80569206987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866335593.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 80569206987 in words is "eighty billion, five hundred sixty-nine million, two hundred six thousand, nine hundred eighty-seven".