73079710447 has 4 divisors (see below), whose sum is σ = 73126229976. Its totient is φ = 73033190920.

The previous prime is 73079710441. The next prime is 73079710463. The reversal of 73079710447 is 74401797037.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73079710447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73079710447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73079710441) 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, 23257408 + ... + 23260549.

It is an arithmetic number, because the mean of its divisors is an integer number (18281557494).

Almost surely, 2^73079710447 is an apocalyptic number.

73079710447 is a deficient number, since it is larger than the sum of its proper divisors (46519529).

73079710447 is a wasteful number, since it uses less digits than its factorization.

73079710447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46519528.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 73079710447 in words is "seventy-three billion, seventy-nine million, seven hundred ten thousand, four hundred forty-seven".