729442209270 has 128 divisors (see below), whose sum is σ = 1828562480640. Its totient is φ = 185994905600.

The previous prime is 729442209269. The next prime is 729442209361. The reversal of 729442209270 is 72902244927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163880545 + ... + 163884995.

It is an arithmetic number, because the mean of its divisors is an integer number (14285644380).

Almost surely, 2^729442209270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 729442209270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914281240320).

729442209270 is an abundant number, since it is smaller than the sum of its proper divisors (1099120271370).

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

729442209270 is a wasteful number, since it uses less digits than its factorization.

729442209270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 729442209270 in words is "seven hundred twenty-nine billion, four hundred forty-two million, two hundred nine thousand, two hundred seventy".