19839451246484 has 24 divisors (see below), whose sum is σ = 34742841373800. Its totient is φ = 9912925900800.

The previous prime is 19839451246403. The next prime is 19839451246499. The reversal of 19839451246484 is 48464215493891.

It can be written as a sum of positive squares in 4 ways, for example, as 8941714672900 + 10897736573584 = 2990270^2 + 3301172^2 .

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 116269022 + ... + 116439530.

It is an arithmetic number, because the mean of its divisors is an integer number (1447618390575).

Almost surely, 2^{19839451246484} is an apocalyptic number.

It is an amenable number.

19839451246484 is a deficient number, since it is larger than the sum of its proper divisors (14903390127316).

19839451246484 is a wasteful number, since it uses less digits than its factorization.

19839451246484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190283 (or 190281 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 68.

The spelling of 19839451246484 in words is "nineteen trillion, eight hundred thirty-nine billion, four hundred fifty-one million, two hundred forty-six thousand, four hundred eighty-four".