6857744351 has 2 divisors, whose sum is σ = 6857744352. Its totient is φ = 6857744350.

The previous prime is 6857744303. The next prime is 6857744353. The reversal of 6857744351 is 1534477586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6857744351 - 2¹⁸ = 6857482207 is a prime.

It is a super-2 number, since 2×6857744351² = 94057315167344822402, which contains 22 as substring.

Together with 6857744353, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6857744351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6857744353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428872175 + 3428872176.

It is an arithmetic number, because the mean of its divisors is an integer number (3428872176).

Almost surely, 2^6857744351 is an apocalyptic number.

6857744351 is a deficient number, since it is larger than the sum of its proper divisors (1).

6857744351 is an equidigital number, since it uses as much as digits as its factorization.

6857744351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 50.

The square root of 6857744351 is about 82811.4989056472. The cubic root of 6857744351 is about 1899.8840511884.

The spelling of 6857744351 in words is "six billion, eight hundred fifty-seven million, seven hundred forty-four thousand, three hundred fifty-one".