6672942838 has 4 divisors (see below), whose sum is σ = 10009414260. Its totient is φ = 3336471418.

The previous prime is 6672942821. The next prime is 6672942883. The reversal of 6672942838 is 8382492766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8382492766 = 2 ⋅4191246383.

It is a super-2 number, since 2×6672942838² = 89056332238430988488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1668235708 + ... + 1668235711.

It is an arithmetic number, because the mean of its divisors is an integer number (2502353565).

Almost surely, 2^6672942838 is an apocalyptic number.

6672942838 is a deficient number, since it is larger than the sum of its proper divisors (3336471422).

6672942838 is a wasteful number, since it uses less digits than its factorization.

6672942838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336471421.

The product of its digits is 6967296, while the sum is 55.

The square root of 6672942838 is about 81688.0825947090. The cubic root of 6672942838 is about 1882.6624828552.

The spelling of 6672942838 in words is "six billion, six hundred seventy-two million, nine hundred forty-two thousand, eight hundred thirty-eight".