6857820896831 has 8 divisors (see below), whose sum is σ = 6868666686000. Its totient is φ = 6846975669312.

The previous prime is 6857820896807. The next prime is 6857820896837. The reversal of 6857820896831 is 1386980287586.

6857820896831 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6857820896831 is a prime.

It is a super-2 number, since 2×6857820896831² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857820896837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29096045 + ... + 29330793.

It is an arithmetic number, because the mean of its divisors is an integer number (858583335750).

Almost surely, 2^{6857820896831} is an apocalyptic number.

6857820896831 is a deficient number, since it is larger than the sum of its proper divisors (10845789169).

6857820896831 is a wasteful number, since it uses less digits than its factorization.

6857820896831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280825.

The product of its (nonzero) digits is 278691840, while the sum is 71.

The spelling of 6857820896831 in words is "six trillion, eight hundred fifty-seven billion, eight hundred twenty million, eight hundred ninety-six thousand, eight hundred thirty-one".