1839781339492 has 12 divisors (see below), whose sum is σ = 3219902068096. Its totient is φ = 919809320040.

The previous prime is 1839781339471. The next prime is 1839781339579. The reversal of 1839781339492 is 2949331879381.

It is a happy number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 20286528 + ... + 20377015.

Almost surely, 2^{1839781339492} is an apocalyptic number.

It is an amenable number.

1839781339492 is a deficient number, since it is larger than the sum of its proper divisors (1380120728604).

1839781339492 is a wasteful number, since it uses less digits than its factorization.

1839781339492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40674858 (or 40674856 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 67.

The spelling of 1839781339492 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, three hundred thirty-nine thousand, four hundred ninety-two".