80716429439 has 4 divisors (see below), whose sum is σ = 81068903160. Its totient is φ = 80363955720.

The previous prime is 80716429429. The next prime is 80716429457. The reversal of 80716429439 is 93492461708.

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 80716429439 - 2¹² = 80716425343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80716429429) 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, 176236517 + ... + 176236974.

It is an arithmetic number, because the mean of its divisors is an integer number (20267225790).

Almost surely, 2^80716429439 is an apocalyptic number.

80716429439 is a deficient number, since it is larger than the sum of its proper divisors (352473721).

80716429439 is a wasteful number, since it uses less digits than its factorization.

80716429439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352473720.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 80716429439 in words is "eighty billion, seven hundred sixteen million, four hundred twenty-nine thousand, four hundred thirty-nine".