80838568507 has 4 divisors (see below), whose sum is σ = 80840739960. Its totient is φ = 80836397056.

The previous prime is 80838568457. The next prime is 80838568543. The reversal of 80838568507 is 70586583808.

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 80838568507 - 2¹⁹ = 80838044219 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80838568597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028893 + ... + 1104670.

It is an arithmetic number, because the mean of its divisors is an integer number (20210184990).

Almost surely, 2^80838568507 is an apocalyptic number.

80838568507 is a deficient number, since it is larger than the sum of its proper divisors (2171453).

80838568507 is a wasteful number, since it uses less digits than its factorization.

80838568507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171452.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 80838568507 in words is "eighty billion, eight hundred thirty-eight million, five hundred sixty-eight thousand, five hundred seven".