4903915989509 has 2 divisors, whose sum is σ = 4903915989510. Its totient is φ = 4903915989508.

The previous prime is 4903915989457. The next prime is 4903915989517. The reversal of 4903915989509 is 9059895193094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3553620861025 + 1350295128484 = 1885105^2 + 1162022^2 .

It is a cyclic number.

It is not a de Polignac number, because 4903915989509 - 2²⁰ = 4903914940933 is a prime.

It is a super-2 number, since 2×4903915989509² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4903915989109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2451957994754 + 2451957994755.

It is an arithmetic number, because the mean of its divisors is an integer number (2451957994755).

Almost surely, 2^{4903915989509} is an apocalyptic number.

It is an amenable number.

4903915989509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4903915989509 is an equidigital number, since it uses as much as digits as its factorization.

4903915989509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141717600, while the sum is 71.

The spelling of 4903915989509 in words is "four trillion, nine hundred three billion, nine hundred fifteen million, nine hundred eighty-nine thousand, five hundred nine".