3125161984 has 156 divisors (see below), whose sum is σ = 7597185264. Its totient is φ = 1279229952.

The previous prime is 3125161981. The next prime is 3125161993. The reversal of 3125161984 is 4891615213.

It is not an unprimeable number, because it can be changed into a prime (3125161981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4615854 + ... + 4616530.

Almost surely, 2^3125161984 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 3125161984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3798592632).

3125161984 is an abundant number, since it is smaller than the sum of its proper divisors (4472023280).

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

3125161984 is an equidigital number, since it uses as much as digits as its factorization.

3125161984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 709 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 3125161984 is about 55903.1482476613. The cubic root of 3125161984 is about 1462.0341296881.

The spelling of 3125161984 in words is "three billion, one hundred twenty-five million, one hundred sixty-one thousand, nine hundred eighty-four".