72435174705730 has 8 divisors (see below), whose sum is σ = 130383314470332. Its totient is φ = 28974069882288.

The previous prime is 72435174705721. The next prime is 72435174705743. The reversal of 72435174705730 is 3750747153427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71145294344289 + 1289880361441 = 8434767^2 + 1135729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3621758735277 + ... + 3621758735296.

Almost surely, 2^{72435174705730} is an apocalyptic number.

72435174705730 is a deficient number, since it is larger than the sum of its proper divisors (57948139764602).

72435174705730 is a wasteful number, since it uses less digits than its factorization.

72435174705730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7243517470580.

The product of its (nonzero) digits is 17287200, while the sum is 55.

The spelling of 72435174705730 in words is "seventy-two trillion, four hundred thirty-five billion, one hundred seventy-four million, seven hundred five thousand, seven hundred thirty".