3125943693 has 12 divisors (see below), whose sum is σ = 4522091548. Its totient is φ = 2080805760.

The previous prime is 3125943671. The next prime is 3125943749. The reversal of 3125943693 is 3963495213.

3125943693 is a `hidden beast` number, since 3 + 125 + 9 + 436 + 93 = 666.

3125943693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 900180009 + 2225763684 = 30003^2 + 47178^2 .

It is not a de Polignac number, because 3125943693 - 2¹⁷ = 3125812621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125943643) 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, 256780 + ... + 268677.

Almost surely, 2^3125943693 is an apocalyptic number.

It is an amenable number.

3125943693 is a deficient number, since it is larger than the sum of its proper divisors (1396147855).

3125943693 is a wasteful number, since it uses less digits than its factorization.

3125943693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526124 (or 526121 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 3125943693 is about 55910.1394471522. The cubic root of 3125943693 is about 1462.1560209655.

The spelling of 3125943693 in words is "three billion, one hundred twenty-five million, nine hundred forty-three thousand, six hundred ninety-three".