726354090329648 has 80 divisors (see below), whose sum is σ = 1584781747952640. Its totient is φ = 319508744659200.

The previous prime is 726354090329591. The next prime is 726354090329669. The reversal of 726354090329648 is 846923090453627.

It is a super-2 number, since 2×726354090329648² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419771911 + ... + 1420283417.

It is an arithmetic number, because the mean of its divisors is an integer number (19809771849408).

Almost surely, 2^{726354090329648} is an apocalyptic number.

It is an amenable number.

726354090329648 is an abundant number, since it is smaller than the sum of its proper divisors (858427657622992).

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

726354090329648 is a wasteful number, since it uses less digits than its factorization.

726354090329648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771826 (or 771820 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 68.

The spelling of 726354090329648 in words is "seven hundred twenty-six trillion, three hundred fifty-four billion, ninety million, three hundred twenty-nine thousand, six hundred forty-eight".