849718451 has 2 divisors, whose sum is σ = 849718452. Its totient is φ = 849718450.

The previous prime is 849718439. The next prime is 849718453. The reversal of 849718451 is 154817948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849718451 - 2¹⁴ = 849702067 is a prime.

Together with 849718453, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 849718396 and 849718405.

It is not a weakly prime, because it can be changed into another prime (849718453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424859225 + 424859226.

It is an arithmetic number, because the mean of its divisors is an integer number (424859226).

Almost surely, 2^849718451 is an apocalyptic number.

849718451 is a deficient number, since it is larger than the sum of its proper divisors (1).

849718451 is an equidigital number, since it uses as much as digits as its factorization.

849718451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 47.

The square root of 849718451 is about 29149.9305488023. The cubic root of 849718451 is about 947.1636364497.

The spelling of 849718451 in words is "eight hundred forty-nine million, seven hundred eighteen thousand, four hundred fifty-one".