5778394638 has 8 divisors (see below), whose sum is σ = 11556789288. Its totient is φ = 1926131544.

The previous prime is 5778394621. The next prime is 5778394697. The reversal of 5778394638 is 8364938775.

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

5778394638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481532881 + ... + 481532892.

It is an arithmetic number, because the mean of its divisors is an integer number (1444598661).

Almost surely, 2^5778394638 is an apocalyptic number.

5778394638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5778394638 is a wasteful number, since it uses less digits than its factorization.

5778394638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963065778.

The product of its digits is 30481920, while the sum is 60.

The square root of 5778394638 is about 76015.7525648467. The cubic root of 5778394638 is about 1794.4680611744.

The spelling of 5778394638 in words is "five billion, seven hundred seventy-eight million, three hundred ninety-four thousand, six hundred thirty-eight".