73705830647 has 4 divisors (see below), whose sum is σ = 73708679976. Its totient is φ = 73702981320.

The previous prime is 73705830637. The next prime is 73705830697. The reversal of 73705830647 is 74603850737.

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 73705830647 - 2⁸ = 73705830391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73705830595 and 73705830604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73705830607) 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, 1385504 + ... + 1437717.

It is an arithmetic number, because the mean of its divisors is an integer number (18427169994).

Almost surely, 2^73705830647 is an apocalyptic number.

73705830647 is a deficient number, since it is larger than the sum of its proper divisors (2849329).

73705830647 is a wasteful number, since it uses less digits than its factorization.

73705830647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849328.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 73705830647 in words is "seventy-three billion, seven hundred five million, eight hundred thirty thousand, six hundred forty-seven".