4851137988509 has 2 divisors, whose sum is σ = 4851137988510. Its totient is φ = 4851137988508.

The previous prime is 4851137988469. The next prime is 4851137988527. The reversal of 4851137988509 is 9058897311584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2459157148900 + 2391980839609 = 1568170^2 + 1546603^2 .

It is a cyclic number.

It is not a de Polignac number, because 4851137988509 - 2¹⁶ = 4851137922973 is a prime.

It is a super-3 number, since 3×4851137988509³ (a number of 39 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4851137981509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425568994254 + 2425568994255.

It is an arithmetic number, because the mean of its divisors is an integer number (2425568994255).

Almost surely, 2^{4851137988509} is an apocalyptic number.

It is an amenable number.

4851137988509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4851137988509 is an equidigital number, since it uses as much as digits as its factorization.

4851137988509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87091200, while the sum is 68.

The spelling of 4851137988509 in words is "four trillion, eight hundred fifty-one billion, one hundred thirty-seven million, nine hundred eighty-eight thousand, five hundred nine".