9218727345 has 32 divisors (see below), whose sum is σ = 15101821440. Its totient is φ = 4799897600.

The previous prime is 9218727311. The next prime is 9218727367. The reversal of 9218727345 is 5437278129.

It is a happy number.

It is not a de Polignac number, because 9218727345 - 2¹¹ = 9218725297 is a prime.

It is a super-2 number, since 2×9218727345² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9218727294 and 9218727303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266401 + ... + 299009.

It is an arithmetic number, because the mean of its divisors is an integer number (471931920).

Almost surely, 2^9218727345 is an apocalyptic number.

It is an amenable number.

9218727345 is a deficient number, since it is larger than the sum of its proper divisors (5883094095).

9218727345 is a wasteful number, since it uses less digits than its factorization.

9218727345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33065.

The product of its digits is 846720, while the sum is 48.

The square root of 9218727345 is about 96014.2038710940. The cubic root of 9218727345 is about 2096.7999140063.

The spelling of 9218727345 in words is "nine billion, two hundred eighteen million, seven hundred twenty-seven thousand, three hundred forty-five".