3960128181 has 8 divisors (see below), whose sum is σ = 5558074720. Its totient is φ = 2501133552.

The previous prime is 3960128171. The next prime is 3960128233. The reversal of 3960128181 is 1818210693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3960128181 - 2⁹ = 3960127669 is a prime.

It is a super-2 number, since 2×3960128181² = 31365230419900737522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960128171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34737910 + ... + 34738023.

It is an arithmetic number, because the mean of its divisors is an integer number (694759340).

Almost surely, 2^3960128181 is an apocalyptic number.

It is an amenable number.

3960128181 is a deficient number, since it is larger than the sum of its proper divisors (1597946539).

3960128181 is a wasteful number, since it uses less digits than its factorization.

3960128181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69475955.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 3960128181 is about 62929.5493468688. The cubic root of 3960128181 is about 1582.1090487220.

The spelling of 3960128181 in words is "three billion, nine hundred sixty million, one hundred twenty-eight thousand, one hundred eighty-one".