726651785216 has 104 divisors (see below), whose sum is σ = 1662959099520. Its totient is φ = 311001513984.

The previous prime is 726651785159. The next prime is 726651785281. The reversal of 726651785216 is 612587156627.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 21687965 + ... + 21721443.

Almost surely, 2^726651785216 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 726651785216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831479549760).

726651785216 is an abundant number, since it is smaller than the sum of its proper divisors (936307314304).

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

726651785216 is an equidigital number, since it uses as much as digits as its factorization.

726651785216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34267 (or 34245 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 56.

The spelling of 726651785216 in words is "seven hundred twenty-six billion, six hundred fifty-one million, seven hundred eighty-five thousand, two hundred sixteen".