727305521696 has 144 divisors (see below), whose sum is σ = 1662101368704. Its totient is φ = 311242894848.

The previous prime is 727305521687. The next prime is 727305521771. The reversal of 727305521696 is 696125503727.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7006751 + ... + 7109793.

It is an arithmetic number, because the mean of its divisors is an integer number (11542370616).

Almost surely, 2^727305521696 is an apocalyptic number.

727305521696 is a gapful number since it is divisible by the number (76) 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 727305521696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831050684352).

727305521696 is an abundant number, since it is smaller than the sum of its proper divisors (934795847008).

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

727305521696 is a wasteful number, since it uses less digits than its factorization.

727305521696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103151 (or 103124 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 727305521696 in words is "seven hundred twenty-seven billion, three hundred five million, five hundred twenty-one thousand, six hundred ninety-six".