5128723227 has 18 divisors (see below), whose sum is σ = 6906952732. Its totient is φ = 3385161584.

The previous prime is 5128723211. The next prime is 5128723247. The reversal of 5128723227 is 7223278215.

It is not a de Polignac number, because 5128723227 - 2⁴ = 5128723211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128723247) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21458974 + ... + 21459212.

Almost surely, 2^5128723227 is an apocalyptic number.

5128723227 is a deficient number, since it is larger than the sum of its proper divisors (1778229505).

5128723227 is an frugal number, since it uses more digits than its factorization.

5128723227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 415 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 5128723227 is about 71615.1047405504. The cubic root of 5128723227 is about 1724.5260311768.

The spelling of 5128723227 in words is "five billion, one hundred twenty-eight million, seven hundred twenty-three thousand, two hundred twenty-seven".