726405223003751 has 2 divisors, whose sum is σ = 726405223003752. Its totient is φ = 726405223003750.

The previous prime is 726405223003741. The next prime is 726405223003771. The reversal of 726405223003751 is 157300322504627.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726405223003751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726405223003696 and 726405223003705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726405223003741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363202611501875 + 363202611501876.

It is an arithmetic number, because the mean of its divisors is an integer number (363202611501876).

Almost surely, 2^{726405223003751} is an apocalyptic number.

726405223003751 is a deficient number, since it is larger than the sum of its proper divisors (1).

726405223003751 is an equidigital number, since it uses as much as digits as its factorization.

726405223003751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 726405223003751 in words is "seven hundred twenty-six trillion, four hundred five billion, two hundred twenty-three million, three thousand, seven hundred fifty-one".