1812465264 has 20 divisors (see below), whose sum is σ = 4682202056. Its totient is φ = 604155072.

The previous prime is 1812465257. The next prime is 1812465269. The reversal of 1812465264 is 4625642181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812465269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18879799 + ... + 18879894.

Almost surely, 2^1812465264 is an apocalyptic number.

It is an amenable number.

1812465264 is an abundant number, since it is smaller than the sum of its proper divisors (2869736792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1812465264 is a wasteful number, since it uses less digits than its factorization.

1812465264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37759704 (or 37759698 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 1812465264 is about 42573.0579592305. The cubic root of 1812465264 is about 1219.2419513709.

The spelling of 1812465264 in words is "one billion, eight hundred twelve million, four hundred sixty-five thousand, two hundred sixty-four".