5312271809 has 24 divisors (see below), whose sum is σ = 6114085632. Its totient is φ = 4597482240.

The previous prime is 5312271799. The next prime is 5312271827. The reversal of 5312271809 is 9081722135.

It is not a de Polignac number, because 5312271809 - 2²⁰ = 5311223233 is a prime.

It is a super-2 number, since 2×5312271809² = 56440463545392264962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5312271829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 775172 + ... + 781994.

It is an arithmetic number, because the mean of its divisors is an integer number (254753568).

Almost surely, 2^5312271809 is an apocalyptic number.

It is an amenable number.

5312271809 is a deficient number, since it is larger than the sum of its proper divisors (801813823).

5312271809 is a wasteful number, since it uses less digits than its factorization.

5312271809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137 (or 7124 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 5312271809 is about 72885.3332914106. Note that the first 3 decimals coincide. The cubic root of 5312271809 is about 1744.8580283672.

The spelling of 5312271809 in words is "five billion, three hundred twelve million, two hundred seventy-one thousand, eight hundred nine".