2791279838 has 8 divisors (see below), whose sum is σ = 4189805688. Its totient is φ = 1394677944.

The previous prime is 2791279819. The next prime is 2791279853. The reversal of 2791279838 is 8389721972.

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

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 in 3 ways as a sum of consecutive naturals, for example, 477356 + ... + 483167.

It is an arithmetic number, because the mean of its divisors is an integer number (523725711).

Almost surely, 2^2791279838 is an apocalyptic number.

2791279838 is a deficient number, since it is larger than the sum of its proper divisors (1398525850).

2791279838 is a wasteful number, since it uses less digits than its factorization.

2791279838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961978.

The product of its digits is 3048192, while the sum is 56.

The square root of 2791279838 is about 52832.5641815727. The cubic root of 2791279838 is about 1407.9950441969.

The spelling of 2791279838 in words is "two billion, seven hundred ninety-one million, two hundred seventy-nine thousand, eight hundred thirty-eight".