79985047473 has 12 divisors (see below), whose sum is σ = 115544823888. Its totient is φ = 53318349720.

The previous prime is 79985047339. The next prime is 79985047529. The reversal of 79985047473 is 37474058997.

79985047473 is a `hidden beast` number, since 7 + 9 + 98 + 5 + 0 + 474 + 73 = 666.

It is not a de Polignac number, because 79985047473 - 2³² = 75690080177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79985047473.

It is not an unprimeable number, because it can be changed into a prime (79985046473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315615 + ... + 509492.

It is an arithmetic number, because the mean of its divisors is an integer number (9628735324).

Almost surely, 2^79985047473 is an apocalyptic number.

It is an amenable number.

79985047473 is a deficient number, since it is larger than the sum of its proper divisors (35559776415).

79985047473 is a wasteful number, since it uses less digits than its factorization.

79985047473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835884 (or 835881 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 79985047473 in words is "seventy-nine billion, nine hundred eighty-five million, forty-seven thousand, four hundred seventy-three".