80709274459 has 4 divisors (see below), whose sum is σ = 88046481240. Its totient is φ = 73372067680.

The previous prime is 80709274421. The next prime is 80709274463. The reversal of 80709274459 is 95447290708.

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 80709274459 - 2⁹ = 80709273947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80709274489) 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, 3668603374 + ... + 3668603395.

It is an arithmetic number, because the mean of its divisors is an integer number (22011620310).

Almost surely, 2^80709274459 is an apocalyptic number.

80709274459 is a deficient number, since it is larger than the sum of its proper divisors (7337206781).

80709274459 is a wasteful number, since it uses less digits than its factorization.

80709274459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337206780.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 80709274459 in words is "eighty billion, seven hundred nine million, two hundred seventy-four thousand, four hundred fifty-nine".