851198355 has 48 divisors (see below), whose sum is σ = 1760315040. Its totient is φ = 389116224.

The previous prime is 851198333. The next prime is 851198389. The reversal of 851198355 is 553891158.

851198355 is a `hidden beast` number, since 8 + 511 + 9 + 83 + 55 = 666.

It is not a de Polignac number, because 851198355 - 2⁶ = 851198291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 851198355.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57724 + ... + 70953.

It is an arithmetic number, because the mean of its divisors is an integer number (36673230).

Almost surely, 2^851198355 is an apocalyptic number.

851198355 is an abundant number, since it is smaller than the sum of its proper divisors (909116685).

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

851198355 is a wasteful number, since it uses less digits than its factorization.

851198355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128705 (or 128692 counting only the distinct ones).

The product of its digits is 216000, while the sum is 45.

The square root of 851198355 is about 29175.3038544588. The cubic root of 851198355 is about 947.7131903559.

The spelling of 851198355 in words is "eight hundred fifty-one million, one hundred ninety-eight thousand, three hundred fifty-five".