3126286881 has 32 divisors (see below), whose sum is σ = 4703368320. Its totient is φ = 2052041472.

The previous prime is 3126286871. The next prime is 3126286897. The reversal of 3126286881 is 1886826213.

3126286881 is a `hidden beast` number, since 3 + 12 + 628 + 6 + 8 + 8 + 1 = 666.

3126286881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3126286881 - 2¹⁰ = 3126285857 is a prime.

It is a super-2 number, since 2×3126286881² = 19547339324625416322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3126286811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699205 + ... + 703661.

It is an arithmetic number, because the mean of its divisors is an integer number (146980260).

Almost surely, 2^3126286881 is an apocalyptic number.

It is an amenable number.

3126286881 is a deficient number, since it is larger than the sum of its proper divisors (1577081439).

3126286881 is a wasteful number, since it uses less digits than its factorization.

3126286881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862 (or 4856 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 3126286881 is about 55913.2084663365. The cubic root of 3126286881 is about 1462.2095275849.

The spelling of 3126286881 in words is "three billion, one hundred twenty-six million, two hundred eighty-six thousand, eight hundred eighty-one".