726261762162272 has 96 divisors (see below), whose sum is σ = 1678439907772992. Its totient is φ = 302809110718464.

The previous prime is 726261762162241. The next prime is 726261762162323. The reversal of 726261762162272 is 272261267162627.

It is a super-2 number, since 2×726261762162272² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69838538 + ... + 79560950.

It is an arithmetic number, because the mean of its divisors is an integer number (17483749039302).

Almost surely, 2^{726261762162272} 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 726261762162272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839219953886496).

726261762162272 is an abundant number, since it is smaller than the sum of its proper divisors (952178145610720).

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

726261762162272 is a wasteful number, since it uses less digits than its factorization.

726261762162272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9731480 (or 9731472 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 59.

The spelling of 726261762162272 in words is "seven hundred twenty-six trillion, two hundred sixty-one billion, seven hundred sixty-two million, one hundred sixty-two thousand, two hundred seventy-two".