6391429219 has 12 divisors (see below), whose sum is σ = 7691306400. Its totient is φ = 5289457488.

The previous prime is 6391429211. The next prime is 6391429223. The reversal of 6391429219 is 9129241936.

It is not a de Polignac number, because 6391429219 - 2³ = 6391429211 is a prime.

It is a super-2 number, since 2×6391429219² = 81700734922973899922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6391429211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2247499 + ... + 2250340.

It is an arithmetic number, because the mean of its divisors is an integer number (640942200).

Almost surely, 2^6391429219 is an apocalyptic number.

6391429219 is a deficient number, since it is larger than the sum of its proper divisors (1299877181).

6391429219 is a wasteful number, since it uses less digits than its factorization.

6391429219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497882 (or 4497875 counting only the distinct ones).

The product of its digits is 209952, while the sum is 46.

The square root of 6391429219 is about 79946.4146725793. The cubic root of 6391429219 is about 1855.8063706720.

The spelling of 6391429219 in words is "six billion, three hundred ninety-one million, four hundred twenty-nine thousand, two hundred nineteen".