272491293889 has 4 divisors (see below), whose sum is σ = 272502425556. Its totient is φ = 272480162224.

The previous prime is 272491293881. The next prime is 272491293901. The reversal of 272491293889 is 988392194272.

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 98952397489 + 173538896400 = 314567^2 + 416580^2 .

It is a cyclic number.

It is not a de Polignac number, because 272491293889 - 2³ = 272491293881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272491293889.

It is not an unprimeable number, because it can be changed into a prime (272491293881) 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, 5529034 + ... + 5578099.

It is an arithmetic number, because the mean of its divisors is an integer number (68125606389).

Almost surely, 2^272491293889 is an apocalyptic number.

It is an amenable number.

272491293889 is a deficient number, since it is larger than the sum of its proper divisors (11131667).

272491293889 is a wasteful number, since it uses less digits than its factorization.

272491293889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131666.

The product of its digits is 31352832, while the sum is 64.

The spelling of 272491293889 in words is "two hundred seventy-two billion, four hundred ninety-one million, two hundred ninety-three thousand, eight hundred eighty-nine".