6397215219 has 16 divisors (see below), whose sum is σ = 9503769600. Its totient is φ = 4252924008.

The previous prime is 6397215157. The next prime is 6397215229. The reversal of 6397215219 is 9125127936.

It is a happy number.

6397215219 is a `hidden beast` number, since 639 + 7 + 2 + 1 + 5 + 2 + 1 + 9 = 666.

It is not a de Polignac number, because 6397215219 - 2²⁰ = 6396166643 is a prime.

It is a super-2 number, since 2×6397215219² = 81848725116410435922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6397215229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320299 + ... + 339684.

It is an arithmetic number, because the mean of its divisors is an integer number (593985600).

Almost surely, 2^6397215219 is an apocalyptic number.

6397215219 is a deficient number, since it is larger than the sum of its proper divisors (3106554381).

6397215219 is a wasteful number, since it uses less digits than its factorization.

6397215219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660351 (or 660345 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 6397215219 is about 79982.5932250262. The cubic root of 6397215219 is about 1856.3662067031.

The spelling of 6397215219 in words is "six billion, three hundred ninety-seven million, two hundred fifteen thousand, two hundred nineteen".