855925643932 has 24 divisors (see below), whose sum is σ = 1510171084800. Its totient is φ = 424460678256.

The previous prime is 855925643917. The next prime is 855925643953. The reversal of 855925643932 is 239346529558.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286382 + ... + 1834837.

It is an arithmetic number, because the mean of its divisors is an integer number (62923795200).

Almost surely, 2^855925643932 is an apocalyptic number.

It is an amenable number.

855925643932 is a deficient number, since it is larger than the sum of its proper divisors (654245440868).

855925643932 is a wasteful number, since it uses less digits than its factorization.

855925643932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121785 (or 3121783 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 61.

The spelling of 855925643932 in words is "eight hundred fifty-five billion, nine hundred twenty-five million, six hundred forty-three thousand, nine hundred thirty-two".