726264520647351 has 16 divisors (see below), whose sum is σ = 1106845926745344. Its totient is φ = 414949372496064.

The previous prime is 726264520647343. The next prime is 726264520647371. The reversal of 726264520647351 is 153746025462627.

It is a happy number.

It is not a de Polignac number, because 726264520647351 - 2³ = 726264520647343 is a prime.

It is a super-2 number, since 2×726264520647351² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726264520647371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455057606 + ... + 2455353411.

It is an arithmetic number, because the mean of its divisors is an integer number (69177870421584).

Almost surely, 2^{726264520647351} is an apocalyptic number.

726264520647351 is a deficient number, since it is larger than the sum of its proper divisors (380581406097993).

726264520647351 is a wasteful number, since it uses less digits than its factorization.

726264520647351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910418070.

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 726264520647351 in words is "seven hundred twenty-six trillion, two hundred sixty-four billion, five hundred twenty million, six hundred forty-seven thousand, three hundred fifty-one".