7272313109 has 4 divisors (see below), whose sum is σ = 7301286720. Its totient is φ = 7243339500.

The previous prime is 7272313031. The next prime is 7272313117. The reversal of 7272313109 is 9013132727.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9013132727 = 31 ⋅290746217.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7272313109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272313309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14486429 + ... + 14486930.

It is an arithmetic number, because the mean of its divisors is an integer number (1825321680).

Almost surely, 2^7272313109 is an apocalyptic number.

It is an amenable number.

7272313109 is a deficient number, since it is larger than the sum of its proper divisors (28973611).

7272313109 is a wasteful number, since it uses less digits than its factorization.

7272313109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28973610.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 7272313109 is about 85277.8582575806. The cubic root of 7272313109 is about 1937.4218337886.

The spelling of 7272313109 in words is "seven billion, two hundred seventy-two million, three hundred thirteen thousand, one hundred nine".