1839781344074 has 4 divisors (see below), whose sum is σ = 2759672016114. Its totient is φ = 919890672036.

The previous prime is 1839781344073. The next prime is 1839781344133. The reversal of 1839781344074 is 4704431879381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1646748528049 + 193032816025 = 1283257^2 + 439355^2 .

It is not an unprimeable number, because it can be changed into a prime (1839781344073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459945336017 + ... + 459945336020.

Almost surely, 2^{1839781344074} is an apocalyptic number.

1839781344074 is a deficient number, since it is larger than the sum of its proper divisors (919890672040).

1839781344074 is an equidigital number, since it uses as much as digits as its factorization.

1839781344074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919890672039.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 1839781344074 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, three hundred forty-four thousand, seventy-four".