4851555694487 has 2 divisors, whose sum is σ = 4851555694488. Its totient is φ = 4851555694486.

The previous prime is 4851555694481. The next prime is 4851555694519. The reversal of 4851555694487 is 7844965551584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4851555694487 - 2¹² = 4851555690391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4851555694487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4851555694481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425777847243 + 2425777847244.

It is an arithmetic number, because the mean of its divisors is an integer number (2425777847244).

Almost surely, 2^{4851555694487} is an apocalyptic number.

4851555694487 is a deficient number, since it is larger than the sum of its proper divisors (1).

4851555694487 is an equidigital number, since it uses as much as digits as its factorization.

4851555694487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680000, while the sum is 71.

The spelling of 4851555694487 in words is "four trillion, eight hundred fifty-one billion, five hundred fifty-five million, six hundred ninety-four thousand, four hundred eighty-seven".