3126864385 has 16 divisors (see below), whose sum is σ = 3849184080. Its totient is φ = 2437032960.

The previous prime is 3126864379. The next prime is 3126864401. The reversal of 3126864385 is 5834686213.

It can be written as a sum of positive squares in 8 ways, for example, as 83466496 + 3043397889 = 9136^2 + 55167^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3126864385 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139861 + ... + 160669.

It is an arithmetic number, because the mean of its divisors is an integer number (240574005).

Almost surely, 2^3126864385 is an apocalyptic number.

It is an amenable number.

3126864385 is a deficient number, since it is larger than the sum of its proper divisors (722319695).

3126864385 is a wasteful number, since it uses less digits than its factorization.

3126864385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588.

The product of its digits is 829440, while the sum is 46.

The square root of 3126864385 is about 55918.3725174473. The cubic root of 3126864385 is about 1462.2995576954.

The spelling of 3126864385 in words is "three billion, one hundred twenty-six million, eight hundred sixty-four thousand, three hundred eighty-five".