80712851447 has 24 divisors (see below), whose sum is σ = 90942339840. Its totient is φ = 71416874880.

The previous prime is 80712851441. The next prime is 80712851449. The reversal of 80712851447 is 74415821708.

It is not a de Polignac number, because 80712851447 - 2⁴ = 80712851431 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 (80712851441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663218 + ... + 775424.

It is an arithmetic number, because the mean of its divisors is an integer number (3789264160).

Almost surely, 2^80712851447 is an apocalyptic number.

80712851447 is a deficient number, since it is larger than the sum of its proper divisors (10229488393).

80712851447 is a wasteful number, since it uses less digits than its factorization.

80712851447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112391 (or 112374 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 80712851447 in words is "eighty billion, seven hundred twelve million, eight hundred fifty-one thousand, four hundred forty-seven".