4974497897489 has 2 divisors, whose sum is σ = 4974497897490. Its totient is φ = 4974497897488.

The previous prime is 4974497897419. The next prime is 4974497897491. The reversal of 4974497897489 is 9847987944794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3232203495889 + 1742294401600 = 1797833^2 + 1319960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4974497897489 is a prime.

Together with 4974497897491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4974497897419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2487248948744 + 2487248948745.

It is an arithmetic number, because the mean of its divisors is an integer number (2487248948745).

Almost surely, 2^{4974497897489} is an apocalyptic number.

It is an amenable number.

4974497897489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4974497897489 is an equidigital number, since it uses as much as digits as its factorization.

4974497897489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36870930432, while the sum is 89.

It can be divided in two parts, 497449 and 7897489, that added together give a palindrome (8394938).

The spelling of 4974497897489 in words is "four trillion, nine hundred seventy-four billion, four hundred ninety-seven million, eight hundred ninety-seven thousand, four hundred eighty-nine".