2185791484 has 12 divisors (see below), whose sum is σ = 3834772984. Its totient is φ = 1090142064.

The previous prime is 2185791479. The next prime is 2185791527. The reversal of 2185791484 is 4841975812.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686634 + ... + 689809.

Almost surely, 2^2185791484 is an apocalyptic number.

It is an amenable number.

2185791484 is a deficient number, since it is larger than the sum of its proper divisors (1648981500).

2185791484 is a wasteful number, since it uses less digits than its factorization.

2185791484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376844 (or 1376842 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 2185791484 is about 46752.4489625945. The cubic root of 2185791484 is about 1297.7854770857.

The spelling of 2185791484 in words is "two billion, one hundred eighty-five million, seven hundred ninety-one thousand, four hundred eighty-four".