6142839291 has 48 divisors (see below), whose sum is σ = 9130369248. Its totient is φ = 3978816000.

The previous prime is 6142839277. The next prime is 6142839301. The reversal of 6142839291 is 1929382416.

6142839291 is a `hidden beast` number, since 614 + 2 + 8 + 3 + 9 + 29 + 1 = 666.

It is not a de Polignac number, because 6142839291 - 2⁷ = 6142839163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6142839191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13324801 + ... + 13325261.

It is an arithmetic number, because the mean of its divisors is an integer number (190216026).

Almost surely, 2^6142839291 is an apocalyptic number.

6142839291 is a deficient number, since it is larger than the sum of its proper divisors (2987529957).

6142839291 is a wasteful number, since it uses less digits than its factorization.

6142839291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 809 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 6142839291 is about 78376.2673964511. The cubic root of 6142839291 is about 1831.4274440052.

The spelling of 6142839291 in words is "six billion, one hundred forty-two million, eight hundred thirty-nine thousand, two hundred ninety-one".