3161951328 has 96 divisors (see below), whose sum is σ = 8544856320. Its totient is φ = 1023045120.

The previous prime is 3161951263. The next prime is 3161951341. The reversal of 3161951328 is 8231591613.

3161951328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027413 + ... + 2028971.

It is an arithmetic number, because the mean of its divisors is an integer number (89008920).

Almost surely, 2^3161951328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161951328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4272428160).

3161951328 is an abundant number, since it is smaller than the sum of its proper divisors (5382904992).

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

3161951328 is a wasteful number, since it uses less digits than its factorization.

3161951328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180 (or 2172 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 3161951328 is about 56231.2308952952. The cubic root of 3161951328 is about 1467.7487758936.

The spelling of 3161951328 in words is "three billion, one hundred sixty-one million, nine hundred fifty-one thousand, three hundred twenty-eight".