5287421812 has 12 divisors (see below), whose sum is σ = 9260231680. Its totient is φ = 2641641336.

The previous prime is 5287421809. The next prime is 5287421827. The reversal of 5287421812 is 2181247825.

It is a hoax number, since the sum of its digits (40) 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 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, 511638 + ... + 521869.

Almost surely, 2^5287421812 is an apocalyptic number.

It is an amenable number.

5287421812 is a deficient number, since it is larger than the sum of its proper divisors (3972809868).

5287421812 is a wasteful number, since it uses less digits than its factorization.

5287421812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034790 (or 1034788 counting only the distinct ones).

The product of its digits is 71680, while the sum is 40.

The square root of 5287421812 is about 72714.6602274947. The cubic root of 5287421812 is about 1742.1330483817.

The spelling of 5287421812 in words is "five billion, two hundred eighty-seven million, four hundred twenty-one thousand, eight hundred twelve".