6859990619 has 2 divisors, whose sum is σ = 6859990620. Its totient is φ = 6859990618.

The previous prime is 6859990583. The next prime is 6859990667. The reversal of 6859990619 is 9160999586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6859990619 - 2⁸ = 6859990363 is a prime.

It is a super-2 number, since 2×6859990619² = 94118942585536006322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6859990019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429995309 + 3429995310.

It is an arithmetic number, because the mean of its divisors is an integer number (3429995310).

Almost surely, 2^6859990619 is an apocalyptic number.

6859990619 is a deficient number, since it is larger than the sum of its proper divisors (1).

6859990619 is an equidigital number, since it uses as much as digits as its factorization.

6859990619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 62.

The square root of 6859990619 is about 82825.0603320034. The cubic root of 6859990619 is about 1900.0914654952.

The spelling of 6859990619 in words is "six billion, eight hundred fifty-nine million, nine hundred ninety thousand, six hundred nineteen".