6386772439 has 8 divisors (see below), whose sum is σ = 6445078640. Its totient is φ = 6328699776.

The previous prime is 6386772419. The next prime is 6386772443. The reversal of 6386772439 is 9342776836.

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 6386772439 - 2⁷ = 6386772311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6386772439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6386772419) 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, 3204 + ... + 113065.

It is an arithmetic number, because the mean of its divisors is an integer number (805634830).

Almost surely, 2^6386772439 is an apocalyptic number.

6386772439 is a deficient number, since it is larger than the sum of its proper divisors (58306201).

6386772439 is a wasteful number, since it uses less digits than its factorization.

6386772439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116769.

The product of its digits is 9144576, while the sum is 55.

The square root of 6386772439 is about 79917.2849826619. The cubic root of 6386772439 is about 1855.3555491416.

The spelling of 6386772439 in words is "six billion, three hundred eighty-six million, seven hundred seventy-two thousand, four hundred thirty-nine".