70272705505 has 4 divisors (see below), whose sum is σ = 84327246612. Its totient is φ = 56218164400.

The previous prime is 70272705487. The next prime is 70272705511. The reversal of 70272705505 is 50550727207.

It is a happy number.

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 47231894241 + 23040811264 = 217329^2 + 151792^2 .

It is not a de Polignac number, because 70272705505 - 2²⁷ = 70138487777 is a prime.

It is a Duffinian number.

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, 7027270546 + ... + 7027270555.

It is an arithmetic number, because the mean of its divisors is an integer number (21081811653).

Almost surely, 2^70272705505 is an apocalyptic number.

It is an amenable number.

70272705505 is a deficient number, since it is larger than the sum of its proper divisors (14054541107).

70272705505 is a wasteful number, since it uses less digits than its factorization.

70272705505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14054541106.

The product of its (nonzero) digits is 171500, while the sum is 40.

The spelling of 70272705505 in words is "seventy billion, two hundred seventy-two million, seven hundred five thousand, five hundred five".