4251085801687 has 2 divisors, whose sum is σ = 4251085801688. Its totient is φ = 4251085801686.

The previous prime is 4251085801583. The next prime is 4251085801691. The reversal of 4251085801687 is 7861085801524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4251085801687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4251085801087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125542900843 + 2125542900844.

It is an arithmetic number, because the mean of its divisors is an integer number (2125542900844).

Almost surely, 2^{4251085801687} is an apocalyptic number.

4251085801687 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251085801687 is an equidigital number, since it uses as much as digits as its factorization.

4251085801687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 4251085801687 in words is "four trillion, two hundred fifty-one billion, eighty-five million, eight hundred one thousand, six hundred eighty-seven".