5312817728 has 14 divisors (see below), whose sum is σ = 10542622806. Its totient is φ = 2656408832.

The previous prime is 5312817707. The next prime is 5312817739. The reversal of 5312817728 is 8277182135.

It can be written as a sum of positive squares in only one way, i.e., 4915692544 + 397125184 = 70112^2 + 19928^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41506325 + ... + 41506452.

Almost surely, 2^5312817728 is an apocalyptic number.

It is an amenable number.

5312817728 is a deficient number, since it is larger than the sum of its proper divisors (5229805078).

5312817728 is an equidigital number, since it uses as much as digits as its factorization.

5312817728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83012789 (or 83012779 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 5312817728 is about 72889.0782490765. The cubic root of 5312817728 is about 1744.9177968025.

The spelling of 5312817728 in words is "five billion, three hundred twelve million, eight hundred seventeen thousand, seven hundred twenty-eight".