6858069939 has 30 divisors (see below), whose sum is σ = 11556466636. Its totient is φ = 3918884760.

The previous prime is 6858069863. The next prime is 6858069941. The reversal of 6858069939 is 9399608586.

It is not a de Polignac number, because 6858069939 - 2⁷ = 6858069811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6858069839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 137077 + ... + 180294.

Almost surely, 2^6858069939 is an apocalyptic number.

6858069939 is a deficient number, since it is larger than the sum of its proper divisors (4698396697).

6858069939 is an equidigital number, since it uses as much as digits as its factorization.

6858069939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317405 (or 317381 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The square root of 6858069939 is about 82813.4647204185. The cubic root of 6858069939 is about 1899.9141179094.

The spelling of 6858069939 in words is "six billion, eight hundred fifty-eight million, sixty-nine thousand, nine hundred thirty-nine".