7446864393 has 12 divisors (see below), whose sum is σ = 10903933300. Its totient is φ = 4896567936.

The previous prime is 7446864379. The next prime is 7446864421. The reversal of 7446864393 is 3934686447.

It can be written as a sum of positive squares in 2 ways, for example, as 4102786809 + 3344077584 = 64053^2 + 57828^2 .

It is not a de Polignac number, because 7446864393 - 2²² = 7442670089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7446864493) 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 11 ways as a sum of consecutive naturals, for example, 5666668 + ... + 5667981.

Almost surely, 2^7446864393 is an apocalyptic number.

7446864393 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7446864393 is a deficient number, since it is larger than the sum of its proper divisors (3457068907).

7446864393 is a wasteful number, since it uses less digits than its factorization.

7446864393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334728 (or 11334725 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The square root of 7446864393 is about 86295.2165128520. The cubic root of 7446864393 is about 1952.8002191421.

The spelling of 7446864393 in words is "seven billion, four hundred forty-six million, eight hundred sixty-four thousand, three hundred ninety-three".