6742623938 has 18 divisors (see below), whose sum is σ = 10456298937. Its totient is φ = 3260818080.

The previous prime is 6742623913. The next prime is 6742623941. The reversal of 6742623938 is 8393262476.

It can be written as a sum of positive squares in 2 ways, for example, as 4454628049 + 2287995889 = 66743^2 + 47833^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=58063.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3598970 + ... + 3600842.

Almost surely, 2^6742623938 is an apocalyptic number.

6742623938 is a deficient number, since it is larger than the sum of its proper divisors (3713674999).

6742623938 is an frugal number, since it uses more digits than its factorization.

6742623938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810 (or 1906 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 50.

The square root of 6742623938 is about 82113.4820720690. The cubic root of 6742623938 is about 1889.1929346272.

Multiplying 6742623938 by its sum of digits (50), we get a square (337131196900 = 580630²).

The spelling of 6742623938 in words is "six billion, seven hundred forty-two million, six hundred twenty-three thousand, nine hundred thirty-eight".