73539633047 has 4 divisors (see below), whose sum is σ = 73540184520. Its totient is φ = 73539081576.

The previous prime is 73539633029. The next prime is 73539633053. The reversal of 73539633047 is 74033693537.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 73539633047 - 2⁶ = 73539632983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73539632986 and 73539633004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73539633017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63008 + ... + 388650.

It is an arithmetic number, because the mean of its divisors is an integer number (18385046130).

Almost surely, 2^73539633047 is an apocalyptic number.

73539633047 is a deficient number, since it is larger than the sum of its proper divisors (551473).

73539633047 is a wasteful number, since it uses less digits than its factorization.

73539633047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551472.

The product of its (nonzero) digits is 4286520, while the sum is 50.

The spelling of 73539633047 in words is "seventy-three billion, five hundred thirty-nine million, six hundred thirty-three thousand, forty-seven".