726974479753 has 2 divisors, whose sum is σ = 726974479754. Its totient is φ = 726974479752.

The previous prime is 726974479619. The next prime is 726974479769. The reversal of 726974479753 is 357974479627.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578188389769 + 148786089984 = 760387^2 + 385728^2 .

It is a cyclic number.

It is not a de Polignac number, because 726974479753 - 2⁹ = 726974479241 is a prime.

It is not a weakly prime, because it can be changed into another prime (726974479453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363487239876 + 363487239877.

It is an arithmetic number, because the mean of its divisors is an integer number (363487239877).

Almost surely, 2^726974479753 is an apocalyptic number.

It is an amenable number.

726974479753 is a deficient number, since it is larger than the sum of its proper divisors (1).

726974479753 is an equidigital number, since it uses as much as digits as its factorization.

726974479753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560105280, while the sum is 70.

The spelling of 726974479753 in words is "seven hundred twenty-six billion, nine hundred seventy-four million, four hundred seventy-nine thousand, seven hundred fifty-three".