5639994794 has 8 divisors (see below), whose sum is σ = 9668562528. Its totient is φ = 2417140620.

The previous prime is 5639994779. The next prime is 5639994821. The reversal of 5639994794 is 4974999365.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5639994794.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 201428372 + ... + 201428399.

It is an arithmetic number, because the mean of its divisors is an integer number (1208570316).

Almost surely, 2^5639994794 is an apocalyptic number.

5639994794 is a deficient number, since it is larger than the sum of its proper divisors (4028567734).

5639994794 is a wasteful number, since it uses less digits than its factorization.

5639994794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402856780.

The product of its digits is 66134880, while the sum is 65.

The square root of 5639994794 is about 75099.8987615829. The cubic root of 5639994794 is about 1780.0255429150.

The spelling of 5639994794 in words is "five billion, six hundred thirty-nine million, nine hundred ninety-four thousand, seven hundred ninety-four".