3128156316 has 18 divisors (see below), whose sum is σ = 7907284112. Its totient is φ = 1042718760.

The previous prime is 3128156263. The next prime is 3128156321. The reversal of 3128156316 is 6136518213.

3128156316 is a `hidden beast` number, since 3 + 1 + 2 + 8 + 15 + 631 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 86893231 = 3128156316 / (3 + 1 + 2 + 8 + 1 + 5 + 6 + 3 + 1 + 6).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 43446580 + ... + 43446651.

Almost surely, 2^3128156316 is an apocalyptic number.

3128156316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3128156316 is an abundant number, since it is smaller than the sum of its proper divisors (4779127796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3128156316 is a wasteful number, since it uses less digits than its factorization.

3128156316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86893241 (or 86893236 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3128156316 is about 55929.9232611667. The cubic root of 3128156316 is about 1462.5009234270.

The spelling of 3128156316 in words is "three billion, one hundred twenty-eight million, one hundred fifty-six thousand, three hundred sixteen".