281413671680 has 144 divisors (see below), whose sum is σ = 686069401248. Its totient is φ = 110567424000.

The previous prime is 281413671673. The next prime is 281413671703. The reversal of 281413671680 is 86176314182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68786435 + ... + 68790525.

It is an arithmetic number, because the mean of its divisors is an integer number (4764370842).

Almost surely, 2^281413671680 is an apocalyptic number.

281413671680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281413671680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343034700624).

281413671680 is an abundant number, since it is smaller than the sum of its proper divisors (404655729568).

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

281413671680 is an equidigital number, since it uses as much as digits as its factorization.

281413671680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054 (or 5040 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 281413671680 in words is "two hundred eighty-one billion, four hundred thirteen million, six hundred seventy-one thousand, six hundred eighty".