6429839477 has 8 divisors (see below), whose sum is σ = 6553085880. Its totient is φ = 6307761600.

The previous prime is 6429839453. The next prime is 6429839519. The reversal of 6429839477 is 7749389246.

It can be written as a sum of positive squares in 4 ways, for example, as 4180139716 + 2249699761 = 64654^2 + 47431^2 .

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 6429839477 - 2¹⁰ = 6429838453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429839417) 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, 281018 + ... + 303035.

It is an arithmetic number, because the mean of its divisors is an integer number (819135735).

Almost surely, 2^6429839477 is an apocalyptic number.

It is an amenable number.

6429839477 is a deficient number, since it is larger than the sum of its proper divisors (123246403).

6429839477 is a wasteful number, since it uses less digits than its factorization.

6429839477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584263.

The product of its digits is 18289152, while the sum is 59.

The square root of 6429839477 is about 80186.2798550974. The cubic root of 6429839477 is about 1859.5165310856.

The spelling of 6429839477 in words is "six billion, four hundred twenty-nine million, eight hundred thirty-nine thousand, four hundred seventy-seven".