72735083329 has 4 divisors (see below), whose sum is σ = 73265996484. Its totient is φ = 72204170176.

The previous prime is 72735083297. The next prime is 72735083371. The reversal of 72735083329 is 92338053727.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55422576400 + 17312506929 = 235420^2 + 131577^2 .

It is a cyclic number.

It is not a de Polignac number, because 72735083329 - 2⁵ = 72735083297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72735081329) 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, 265456372 + ... + 265456645.

It is an arithmetic number, because the mean of its divisors is an integer number (18316499121).

Almost surely, 2^72735083329 is an apocalyptic number.

It is an amenable number.

72735083329 is a deficient number, since it is larger than the sum of its proper divisors (530913155).

72735083329 is a wasteful number, since it uses less digits than its factorization.

72735083329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530913154.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 72735083329 in words is "seventy-two billion, seven hundred thirty-five million, eighty-three thousand, three hundred twenty-nine".