72435305353 has 4 divisors (see below), whose sum is σ = 72735867028. Its totient is φ = 72134743680.

The previous prime is 72435305347. The next prime is 72435305357. The reversal of 72435305353 is 35350353427.

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 19142659449 + 53292645904 = 138357^2 + 230852^2 .

It is a cyclic number.

It is not a de Polignac number, because 72435305353 - 2²⁵ = 72401750921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72435305357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150280476 + ... + 150280957.

It is an arithmetic number, because the mean of its divisors is an integer number (18183966757).

Almost surely, 2^72435305353 is an apocalyptic number.

It is an amenable number.

72435305353 is a deficient number, since it is larger than the sum of its proper divisors (300561675).

72435305353 is a wasteful number, since it uses less digits than its factorization.

72435305353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300561674.

The product of its (nonzero) digits is 567000, while the sum is 40.

The spelling of 72435305353 in words is "seventy-two billion, four hundred thirty-five million, three hundred five thousand, three hundred fifty-three".