729281949860 has 24 divisors (see below), whose sum is σ = 1531716841536. Its totient is φ = 291669971040.

The previous prime is 729281949839. The next prime is 729281949959. The reversal of 729281949860 is 68949182927.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2535686 + ... + 2808605.

It is an arithmetic number, because the mean of its divisors is an integer number (63821535064).

Almost surely, 2^729281949860 is an apocalyptic number.

It is an amenable number.

729281949860 is an abundant number, since it is smaller than the sum of its proper divisors (802434891676).

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

729281949860 is a wasteful number, since it uses less digits than its factorization.

729281949860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351123 (or 5351121 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 65.

The spelling of 729281949860 in words is "seven hundred twenty-nine billion, two hundred eighty-one million, nine hundred forty-nine thousand, eight hundred sixty".