3201881391 has 12 divisors (see below), whose sum is σ = 4690080720. Its totient is φ = 2104522560.

The previous prime is 3201881377. The next prime is 3201881401. The reversal of 3201881391 is 1931881023.

It is not a de Polignac number, because 3201881391 - 2⁹ = 3201880879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201881791) 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, 2504746 + ... + 2506023.

It is an arithmetic number, because the mean of its divisors is an integer number (390840060).

Almost surely, 2^3201881391 is an apocalyptic number.

3201881391 is a deficient number, since it is larger than the sum of its proper divisors (1488199329).

3201881391 is a wasteful number, since it uses less digits than its factorization.

3201881391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010846 (or 5010843 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 3201881391 is about 56585.1693555829. The cubic root of 3201881391 is about 1473.9013388646.

The spelling of 3201881391 in words is "three billion, two hundred one million, eight hundred eighty-one thousand, three hundred ninety-one".