73439424734401 has 16 divisors (see below), whose sum is σ = 80526777004800. Its totient is φ = 66421105878400.

The previous prime is 73439424734387. The next prime is 73439424734443. The reversal of 73439424734401 is 10443742493437.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 73439424734401 - 2³⁹ = 72889668920513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73439424731401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10374796 + ... + 15953533.

It is an arithmetic number, because the mean of its divisors is an integer number (5032923562800).

Almost surely, 2^{73439424734401} is an apocalyptic number.

It is an amenable number.

73439424734401 is a deficient number, since it is larger than the sum of its proper divisors (7087352270399).

73439424734401 is a wasteful number, since it uses less digits than its factorization.

73439424734401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26329640.

The product of its (nonzero) digits is 24385536, while the sum is 55.

The spelling of 73439424734401 in words is "seventy-three trillion, four hundred thirty-nine billion, four hundred twenty-four million, seven hundred thirty-four thousand, four hundred one".