1839781065464 has 16 divisors (see below), whose sum is σ = 3474768985200. Its totient is φ = 913176002752.

The previous prime is 1839781065449. The next prime is 1839781065491. The reversal of 1839781065464 is 4645601879381.

It is a junction number, because it is equal to n+sod(n) for n = 1839781065397 and 1839781065406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839315084 + ... + 839317275.

It is an arithmetic number, because the mean of its divisors is an integer number (217173061575).

Almost surely, 2^{1839781065464} is an apocalyptic number.

It is an amenable number.

1839781065464 is a deficient number, since it is larger than the sum of its proper divisors (1634987919736).

1839781065464 is a wasteful number, since it uses less digits than its factorization.

1839781065464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678632502 (or 1678632498 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 1839781065464 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, sixty-five thousand, four hundred sixty-four".