5128311628 has 48 divisors (see below), whose sum is σ = 10161365760. Its totient is φ = 2243259200.

The previous prime is 5128311569. The next prime is 5128311637. The reversal of 5128311628 is 8261138215.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390375 + ... + 403297.

It is an arithmetic number, because the mean of its divisors is an integer number (211695120).

Almost surely, 2^5128311628 is an apocalyptic number.

5128311628 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

5128311628 is a deficient number, since it is larger than the sum of its proper divisors (5033054132).

5128311628 is a wasteful number, since it uses less digits than its factorization.

5128311628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13278 (or 13276 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 5128311628 is about 71612.2309944328. The cubic root of 5128311628 is about 1724.4798967461.

The spelling of 5128311628 in words is "five billion, one hundred twenty-eight million, three hundred eleven thousand, six hundred twenty-eight".