726904740057408 has 224 divisors, whose sum is σ = 2338277924643840. Its totient is φ = 219608680896000.

The previous prime is 726904740057323. The next prime is 726904740057449. The reversal of 726904740057408 is 804750047409627.

726904740057408 is a `hidden beast` number, since 7 + 2 + 6 + 90 + 474 + 0 + 0 + 5 + 74 + 0 + 8 = 666.

It is a super-2 number, since 2×726904740057408² (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 31 ways as a sum of consecutive naturals, for example, 51475788 + ... + 64059083.

Almost surely, 2^{726904740057408} is an apocalyptic number.

It is an amenable number.

726904740057408 is an abundant number, since it is smaller than the sum of its proper divisors (1611373184586432).

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

726904740057408 is a wasteful number, since it uses less digits than its factorization.

726904740057408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115535234 (or 115535218 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 63.

The spelling of 726904740057408 in words is "seven hundred twenty-six trillion, nine hundred four billion, seven hundred forty million, fifty-seven thousand, four hundred eight".