6143849397 has 24 divisors (see below), whose sum is σ = 10171324800. Its totient is φ = 3500699040.

The previous prime is 6143849389. The next prime is 6143849449. The reversal of 6143849397 is 7939483416.

It is a happy number.

6143849397 is a `hidden beast` number, since 6 + 143 + 8 + 493 + 9 + 7 = 666.

It is not a de Polignac number, because 6143849397 - 2³ = 6143849389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6143849357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117729 + ... + 161702.

It is an arithmetic number, because the mean of its divisors is an integer number (423805200).

Almost surely, 2^6143849397 is an apocalyptic number.

It is an amenable number.

6143849397 is a deficient number, since it is larger than the sum of its proper divisors (4027475403).

6143849397 is a wasteful number, since it uses less digits than its factorization.

6143849397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279793 (or 279790 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 6143849397 is about 78382.7110847794. The cubic root of 6143849397 is about 1831.5278229111.

The spelling of 6143849397 in words is "six billion, one hundred forty-three million, eight hundred forty-nine thousand, three hundred ninety-seven".