80039742689279 has 8 divisors (see below), whose sum is σ = 80068116495120. Its totient is φ = 80011373921856.

The previous prime is 80039742689209. The next prime is 80039742689297. The reversal of 80039742689279 is 97298624793008.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80039742689279 is a prime.

It is a super-2 number, since 2×80039742689279² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80039742689209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30660977 + ... + 33168885.

It is an arithmetic number, because the mean of its divisors is an integer number (10008514561890).

Almost surely, 2^{80039742689279} is an apocalyptic number.

80039742689279 is a deficient number, since it is larger than the sum of its proper divisors (28373805841).

80039742689279 is a wasteful number, since it uses less digits than its factorization.

80039742689279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519209.

The product of its (nonzero) digits is 658409472, while the sum is 74.

The spelling of 80039742689279 in words is "eighty trillion, thirty-nine billion, seven hundred forty-two million, six hundred eighty-nine thousand, two hundred seventy-nine".