851725418287 has 2 divisors, whose sum is σ = 851725418288. Its totient is φ = 851725418286.

The previous prime is 851725418237. The next prime is 851725418303. The reversal of 851725418287 is 782814527158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 851725418287 - 2¹¹ = 851725416239 is a prime.

It is a super-2 number, since 2×851725418287² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (851725418237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425862709143 + 425862709144.

It is an arithmetic number, because the mean of its divisors is an integer number (425862709144).

Almost surely, 2^851725418287 is an apocalyptic number.

851725418287 is a deficient number, since it is larger than the sum of its proper divisors (1).

851725418287 is an equidigital number, since it uses as much as digits as its factorization.

851725418287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10035200, while the sum is 58.

The spelling of 851725418287 in words is "eight hundred fifty-one billion, seven hundred twenty-five million, four hundred eighteen thousand, two hundred eighty-seven".