7272685105 has 24 divisors (see below), whose sum is σ = 10502156520. Its totient is φ = 4815014400.

The previous prime is 7272685103. The next prime is 7272685111. The reversal of 7272685105 is 5015862727.

It can be written as a sum of positive squares in 4 ways, for example, as 2103506496 + 5169178609 = 45864^2 + 71897^2 .

It is not a de Polignac number, because 7272685105 - 2¹ = 7272685103 is a prime.

It is a super-2 number, since 2×7272685105² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7272685103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504696 + ... + 518905.

It is an arithmetic number, because the mean of its divisors is an integer number (437589855).

Almost surely, 2^7272685105 is an apocalyptic number.

It is an amenable number.

7272685105 is a deficient number, since it is larger than the sum of its proper divisors (3229471415).

7272685105 is a wasteful number, since it uses less digits than its factorization.

7272685105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023649 (or 1023642 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 7272685105 is about 85280.0393116701. The cubic root of 7272685105 is about 1937.4548677936.

The spelling of 7272685105 in words is "seven billion, two hundred seventy-two million, six hundred eighty-five thousand, one hundred five".