6844391042 has 16 divisors (see below), whose sum is σ = 10336808952. Its totient is φ = 3398830080.

The previous prime is 6844391023. The next prime is 6844391053. The reversal of 6844391042 is 2401934486.

It can be written as a sum of positive squares in 4 ways, for example, as 6251906761 + 592484281 = 79069^2 + 24341^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335042 + ... + 354882.

Almost surely, 2^6844391042 is an apocalyptic number.

6844391042 is a deficient number, since it is larger than the sum of its proper divisors (3492417910).

6844391042 is a wasteful number, since it uses less digits than its factorization.

6844391042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21013.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 6844391042 is about 82730.8348924390. The cubic root of 6844391042 is about 1898.6501069118.

The spelling of 6844391042 in words is "six billion, eight hundred forty-four million, three hundred ninety-one thousand, forty-two".