6858812459 has 4 divisors (see below), whose sum is σ = 6859016616. Its totient is φ = 6858608304.

The previous prime is 6858812437. The next prime is 6858812461. The reversal of 6858812459 is 9542188586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6858812459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6858812159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38474 + ... + 123279.

It is an arithmetic number, because the mean of its divisors is an integer number (1714754154).

Almost surely, 2^6858812459 is an apocalyptic number.

6858812459 is a deficient number, since it is larger than the sum of its proper divisors (204157).

6858812459 is a wasteful number, since it uses less digits than its factorization.

6858812459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204156.

The product of its digits is 5529600, while the sum is 56.

The square root of 6858812459 is about 82817.9476864768. The cubic root of 6858812459 is about 1899.9826830370.

The spelling of 6858812459 in words is "six billion, eight hundred fifty-eight million, eight hundred twelve thousand, four hundred fifty-nine".