3928189225156 has 81 divisors (see below), whose sum is σ = 8440832628207. Its totient is φ = 1594689843600.

The previous prime is 3928189225153. The next prime is 3928189225183. The reversal of 3928189225156 is 6515229818293.

The square root of 3928189225156 is 1981966.

It is a perfect power (a square), and thus also a powerful number.

It is a junction number, because it is equal to n+sod(n) for n = 3928189225094 and 3928189225103.

It is not an unprimeable number, because it can be changed into a prime (3928189225151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 527199231 + ... + 527206681.

Almost surely, 2^{3928189225156} is an apocalyptic number.

3928189225156 is the 1981966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3928189225156

3928189225156 is an abundant number, since it is smaller than the sum of its proper divisors (4512643403051).

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

3928189225156 is an frugal number, since it uses more digits than its factorization.

3928189225156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958 (or 7479 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The spelling of 3928189225156 in words is "three trillion, nine hundred twenty-eight billion, one hundred eighty-nine million, two hundred twenty-five thousand, one hundred fifty-six".