855263128 has 16 divisors (see below), whose sum is σ = 1658916000. Its totient is φ = 412885536.

The previous prime is 855263111. The next prime is 855263137. The reversal of 855263128 is 821362558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843008 + ... + 1843471.

It is an arithmetic number, because the mean of its divisors is an integer number (103682250).

Almost surely, 2^855263128 is an apocalyptic number.

It is an amenable number.

855263128 is a deficient number, since it is larger than the sum of its proper divisors (803652872).

855263128 is a wasteful number, since it uses less digits than its factorization.

855263128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686514 (or 3686510 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 855263128 is about 29244.8820821695. The cubic root of 855263128 is about 949.2193505622.

The spelling of 855263128 in words is "eight hundred fifty-five million, two hundred sixty-three thousand, one hundred twenty-eight".