7473443738 has 8 divisors (see below), whose sum is σ = 11216437140. Its totient is φ = 3734631360.

The previous prime is 7473443737. The next prime is 7473443743. The reversal of 7473443738 is 8373443747.

It can be written as a sum of positive squares in 2 ways, for example, as 6726132169 + 747311569 = 82013^2 + 27337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7473443738² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7473443737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040783 + ... + 1047938.

Almost surely, 2^7473443738 is an apocalyptic number.

7473443738 is a deficient number, since it is larger than the sum of its proper divisors (3742993402).

7473443738 is a wasteful number, since it uses less digits than its factorization.

7473443738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090512.

The product of its digits is 4741632, while the sum is 50.

The square root of 7473443738 is about 86449.0817649326. The cubic root of 7473443738 is about 1955.1207717072.

Subtracting 7473443738 from its reverse (8373443747), we obtain a palindrome (900000009).

The spelling of 7473443738 in words is "seven billion, four hundred seventy-three million, four hundred forty-three thousand, seven hundred thirty-eight".