721281066882 has 8 divisors (see below), whose sum is σ = 1442562133776. Its totient is φ = 240427022292.

The previous prime is 721281066871. The next prime is 721281066887. The reversal of 721281066882 is 288660182127.

It is a sphenic number, since it is the product of 3 distinct primes.

721281066882 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (721281066887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60106755568 + ... + 60106755579.

It is an arithmetic number, because the mean of its divisors is an integer number (180320266722).

Almost surely, 2^721281066882 is an apocalyptic number.

721281066882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

721281066882 is a wasteful number, since it uses less digits than its factorization.

721281066882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120213511152.

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 721281066882 in words is "seven hundred twenty-one billion, two hundred eighty-one million, sixty-six thousand, eight hundred eighty-two".