5155394639 has 8 divisors (see below), whose sum is σ = 5401869792. Its totient is φ = 4910780160.

The previous prime is 5155394633. The next prime is 5155394669. The reversal of 5155394639 is 9364935515.

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

It is a cyclic number.

It is not a de Polignac number, because 5155394639 - 2¹² = 5155390543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155394633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459494 + ... + 470579.

It is an arithmetic number, because the mean of its divisors is an integer number (675233724).

Almost surely, 2^5155394639 is an apocalyptic number.

5155394639 is a deficient number, since it is larger than the sum of its proper divisors (246475153).

5155394639 is a wasteful number, since it uses less digits than its factorization.

5155394639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930337.

The product of its digits is 2187000, while the sum is 50.

The square root of 5155394639 is about 71801.0768651836. The cubic root of 5155394639 is about 1727.5102724175.

The spelling of 5155394639 in words is "five billion, one hundred fifty-five million, three hundred ninety-four thousand, six hundred thirty-nine".