898042247172 has 144 divisors (see below), whose sum is σ = 2637878914944. Its totient is φ = 252281088000.

The previous prime is 898042247161. The next prime is 898042247177. The reversal of 898042247172 is 271742240898.

898042247172 is a `hidden beast` number, since 8 + 9 + 8 + 0 + 422 + 47 + 172 = 666.

It is not an unprimeable number, because it can be changed into a prime (898042247177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46736647 + ... + 46755857.

It is an arithmetic number, because the mean of its divisors is an integer number (18318603576).

Almost surely, 2^898042247172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 898042247172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318939457472).

898042247172 is an abundant number, since it is smaller than the sum of its proper divisors (1739836667772).

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

898042247172 is a wasteful number, since it uses less digits than its factorization.

898042247172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330 (or 22325 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 898042247172 in words is "eight hundred ninety-eight billion, forty-two million, two hundred forty-seven thousand, one hundred seventy-two".