1941800013 has 16 divisors (see below), whose sum is σ = 2913158400. Its totient is φ = 1278145440.

The previous prime is 1941799991. The next prime is 1941800017. The reversal of 1941800013 is 3100081491.

It is not a de Polignac number, because 1941800013 - 2⁸ = 1941799757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1941800013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941800017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453048 + ... + 457313.

It is an arithmetic number, because the mean of its divisors is an integer number (182072400).

Almost surely, 2^1941800013 is an apocalyptic number.

It is an amenable number.

1941800013 is a deficient number, since it is larger than the sum of its proper divisors (971358387).

1941800013 is an equidigital number, since it uses as much as digits as its factorization.

1941800013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910449 (or 910443 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1941800013 is about 44065.8599484907. The cubic root of 1941800013 is about 1247.5793180384.

The spelling of 1941800013 in words is "one billion, nine hundred forty-one million, eight hundred thousand, thirteen".