726702126226 has 8 divisors (see below), whose sum is σ = 1091331097164. Its totient is φ = 362925093840.

The previous prime is 726702126211. The next prime is 726702126277. The reversal of 726702126226 is 622621207627.

It can be written as a sum of positive squares in 2 ways, for example, as 716137370001 + 10564756225 = 846249^2 + 102785^2 .

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

It is a super-2 number, since 2×726702126226² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212982505 + ... + 212985916.

Almost surely, 2^726702126226 is an apocalyptic number.

726702126226 is a deficient number, since it is larger than the sum of its proper divisors (364628970938).

726702126226 is a wasteful number, since it uses less digits than its factorization.

726702126226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425969276.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 726702126226 in words is "seven hundred twenty-six billion, seven hundred two million, one hundred twenty-six thousand, two hundred twenty-six".