1874368213 has 4 divisors (see below), whose sum is σ = 1895428620. Its totient is φ = 1853307808.

The previous prime is 1874368189. The next prime is 1874368219. The reversal of 1874368213 is 3128634781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3128634781 = 821 ⋅3810761.

It can be written as a sum of positive squares in 2 ways, for example, as 279324369 + 1595043844 = 16713^2 + 39938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874368213 - 2²⁵ = 1840813781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1874368213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1874368219) by changing a digit.

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, 10530070 + ... + 10530247.

It is an arithmetic number, because the mean of its divisors is an integer number (473857155).

Almost surely, 2^1874368213 is an apocalyptic number.

It is an amenable number.

1874368213 is a deficient number, since it is larger than the sum of its proper divisors (21060407).

1874368213 is an equidigital number, since it uses as much as digits as its factorization.

1874368213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21060406.

The product of its digits is 193536, while the sum is 43.

The square root of 1874368213 is about 43293.9743266889. The cubic root of 1874368213 is about 1232.9675219861.

The spelling of 1874368213 in words is "one billion, eight hundred seventy-four million, three hundred sixty-eight thousand, two hundred thirteen".