726222425501 has 8 divisors (see below), whose sum is σ = 726480129144. Its totient is φ = 725964779520.

The previous prime is 726222425497. The next prime is 726222425527. The reversal of 726222425501 is 105524222627.

It can be written as a sum of positive squares in 4 ways, for example, as 20074639225 + 706147786276 = 141685^2 + 840326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726222425501 - 2² = 726222425497 is a prime.

It is a super-4 number, since 4×726222425501⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726222425561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49880915 + ... + 49895471.

It is an arithmetic number, because the mean of its divisors is an integer number (90810016143).

Almost surely, 2^726222425501 is an apocalyptic number.

It is an amenable number.

726222425501 is a deficient number, since it is larger than the sum of its proper divisors (257703643).

726222425501 is a wasteful number, since it uses less digits than its factorization.

726222425501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28831.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 726222425501 in words is "seven hundred twenty-six billion, two hundred twenty-two million, four hundred twenty-five thousand, five hundred one".