726197398756680 has 32 divisors (see below), whose sum is σ = 2178592196270400. Its totient is φ = 193652639668416.

The previous prime is 726197398756679. The next prime is 726197398756751. The reversal of 726197398756680 is 86657893791627.

It is a Smith number, since the sum of its digits (84) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 726197398756593 and 726197398756602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3025822494700 + ... + 3025822494939.

It is an arithmetic number, because the mean of its divisors is an integer number (68081006133450).

Almost surely, 2^{726197398756680} is an apocalyptic number.

It is an amenable number.

726197398756680 is an abundant number, since it is smaller than the sum of its proper divisors (1452394797513720).

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

726197398756680 is a wasteful number, since it uses less digits than its factorization.

726197398756680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051644989653 (or 6051644989649 counting only the distinct ones).

The product of its (nonzero) digits is 11522165760, while the sum is 84.

The spelling of 726197398756680 in words is "seven hundred twenty-six trillion, one hundred ninety-seven billion, three hundred ninety-eight million, seven hundred fifty-six thousand, six hundred eighty".