726145335616 has 56 divisors (see below), whose sum is σ = 1453885921280. Its totient is φ = 359818163712.

The previous prime is 726145335593. The next prime is 726145335649. The reversal of 726145335616 is 616533541627.

It is a self number, because there is not a number n which added to its sum of digits gives 726145335616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7421026 + ... + 7518238.

Almost surely, 2^726145335616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726145335616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726942960640).

726145335616 is an abundant number, since it is smaller than the sum of its proper divisors (727740585664).

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

726145335616 is a wasteful number, since it uses less digits than its factorization.

726145335616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98271 (or 98261 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 49.

The spelling of 726145335616 in words is "seven hundred twenty-six billion, one hundred forty-five million, three hundred thirty-five thousand, six hundred sixteen".