1849471613 has 4 divisors (see below), whose sum is σ = 2017605408. Its totient is φ = 1681337820.

The previous prime is 1849471597. The next prime is 1849471619. The reversal of 1849471613 is 3161749481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1849471613 - 2⁴ = 1849471597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1849471619) 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, 84066881 + ... + 84066902.

It is an arithmetic number, because the mean of its divisors is an integer number (504401352).

Almost surely, 2^1849471613 is an apocalyptic number.

It is an amenable number.

1849471613 is a deficient number, since it is larger than the sum of its proper divisors (168133795).

1849471613 is a wasteful number, since it uses less digits than its factorization.

1849471613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168133794.

The product of its digits is 145152, while the sum is 44.

The square root of 1849471613 is about 43005.4835224533. The cubic root of 1849471613 is about 1227.4841414736.

The spelling of 1849471613 in words is "one billion, eight hundred forty-nine million, four hundred seventy-one thousand, six hundred thirteen".