726375571663320 has 96 divisors (see below), whose sum is σ = 2365358566474800. Its totient is φ = 193319601997056.

The previous prime is 726375571663297. The next prime is 726375571663333. The reversal of 726375571663320 is 23366175573627.

726375571663320 is a `hidden beast` number, since 7 + 2 + 6 + 3 + 7 + 5 + 571 + 6 + 6 + 33 + 20 = 666.

726375571663320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×726375571663320² (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 23 ways as a sum of consecutive naturals, for example, 1981850082 + ... + 1982216561.

Almost surely, 2^{726375571663320} is an apocalyptic number.

It is an amenable number.

726375571663320 is an abundant number, since it is smaller than the sum of its proper divisors (1638982994811480).

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

726375571663320 is a wasteful number, since it uses less digits than its factorization.

726375571663320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964067169 (or 3964067162 counting only the distinct ones).

The product of its (nonzero) digits is 200037600, while the sum is 63.

The spelling of 726375571663320 in words is "seven hundred twenty-six trillion, three hundred seventy-five billion, five hundred seventy-one million, six hundred sixty-three thousand, three hundred twenty".