6842978427 has 8 divisors (see below), whose sum is σ = 9128121664. Its totient is φ = 4559910408.

The previous prime is 6842978399. The next prime is 6842978447. The reversal of 6842978427 is 7248792486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6842978427 - 2⁷ = 6842978299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6842978447) 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, 511093 + ... + 524310.

It is an arithmetic number, because the mean of its divisors is an integer number (1141015208).

Almost surely, 2^6842978427 is an apocalyptic number.

6842978427 is a deficient number, since it is larger than the sum of its proper divisors (2285143237).

6842978427 is a wasteful number, since it uses less digits than its factorization.

6842978427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037609.

The product of its digits is 10838016, while the sum is 57.

The square root of 6842978427 is about 82722.2970365306. The cubic root of 6842978427 is about 1898.5194770212.

The spelling of 6842978427 in words is "six billion, eight hundred forty-two million, nine hundred seventy-eight thousand, four hundred twenty-seven".