3125693816 has 16 divisors (see below), whose sum is σ = 6697915440. Its totient is φ = 1339583040.

The previous prime is 3125693803. The next prime is 3125693827. The reversal of 3125693816 is 6183965213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27907925 + ... + 27908036.

It is an arithmetic number, because the mean of its divisors is an integer number (418619715).

Almost surely, 2^3125693816 is an apocalyptic number.

It is an amenable number.

3125693816 is an abundant number, since it is smaller than the sum of its proper divisors (3572221624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3125693816 is a wasteful number, since it uses less digits than its factorization.

3125693816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55815974 (or 55815970 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 3125693816 is about 55907.9047720445. The cubic root of 3125693816 is about 1462.1170600488.

The spelling of 3125693816 in words is "three billion, one hundred twenty-five million, six hundred ninety-three thousand, eight hundred sixteen".