80061809839 has 4 divisors (see below), whose sum is σ = 87340156200. Its totient is φ = 72783463480.

The previous prime is 80061809803. The next prime is 80061809879. The reversal of 80061809839 is 93890816008.

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 80061809839 - 2²⁷ = 79927592111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80061809879) 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, 3639173164 + ... + 3639173185.

It is an arithmetic number, because the mean of its divisors is an integer number (21835039050).

Almost surely, 2^80061809839 is an apocalyptic number.

80061809839 is a deficient number, since it is larger than the sum of its proper divisors (7278346361).

80061809839 is a wasteful number, since it uses less digits than its factorization.

80061809839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278346360.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 80061809839 in words is "eighty billion, sixty-one million, eight hundred nine thousand, eight hundred thirty-nine".