1839781344045 has 64 divisors (see below), whose sum is σ = 3144174278400. Its totient is φ = 915920732160.

The previous prime is 1839781344019. The next prime is 1839781344073. The reversal of 1839781344045 is 5404431879381.

It is not a de Polignac number, because 1839781344045 - 2⁵ = 1839781344013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20948425 + ... + 21036065.

It is an arithmetic number, because the mean of its divisors is an integer number (49127723100).

Almost surely, 2^{1839781344045} is an apocalyptic number.

1839781344045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1839781344045 is a deficient number, since it is larger than the sum of its proper divisors (1304392934355).

1839781344045 is a wasteful number, since it uses less digits than its factorization.

1839781344045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88750.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 1839781344045 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, three hundred forty-four thousand, forty-five".