7642236393 has 24 divisors (see below), whose sum is σ = 12046241376. Its totient is φ = 4630147200.

The previous prime is 7642236391. The next prime is 7642236401. The reversal of 7642236393 is 3936322467.

7642236393 is a `hidden beast` number, since 7 + 6 + 4 + 2 + 2 + 3 + 639 + 3 = 666.

It is not a de Polignac number, because 7642236393 - 2¹ = 7642236391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7642236391) 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 23 ways as a sum of consecutive naturals, for example, 342721 + ... + 364337.

It is an arithmetic number, because the mean of its divisors is an integer number (501926724).

Almost surely, 2^7642236393 is an apocalyptic number.

It is an amenable number.

7642236393 is a deficient number, since it is larger than the sum of its proper divisors (4404004983).

7642236393 is a wasteful number, since it uses less digits than its factorization.

7642236393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25205 (or 25202 counting only the distinct ones).

The product of its digits is 979776, while the sum is 45.

The square root of 7642236393 is about 87419.8855695888. The cubic root of 7642236393 is about 1969.7305576849.

The spelling of 7642236393 in words is "seven billion, six hundred forty-two million, two hundred thirty-six thousand, three hundred ninety-three".