281022966672 has 160 divisors (see below), whose sum is σ = 832380057600. Its totient is φ = 80032195584.

The previous prime is 281022966667. The next prime is 281022966673. The reversal of 281022966672 is 276669220182.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (281022966673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248912604 + ... + 248913732.

It is an arithmetic number, because the mean of its divisors is an integer number (5202375360).

Almost surely, 2^281022966672 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 281022966672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416190028800).

281022966672 is an abundant number, since it is smaller than the sum of its proper divisors (551357090928).

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

281022966672 is a wasteful number, since it uses less digits than its factorization.

281022966672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2887 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 281022966672 in words is "two hundred eighty-one billion, twenty-two million, nine hundred sixty-six thousand, six hundred seventy-two".