726253666247506 has 8 divisors (see below), whose sum is σ = 1105639909809840. Its totient is φ = 357707029644228.

The previous prime is 726253666247491. The next prime is 726253666247539. The reversal of 726253666247506 is 605742666352627.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (67).

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, 2709901739596 + ... + 2709901739863.

It is an arithmetic number, because the mean of its divisors is an integer number (138204988726230).

Almost surely, 2^{726253666247506} is an apocalyptic number.

726253666247506 is a deficient number, since it is larger than the sum of its proper divisors (379386243562334).

726253666247506 is a wasteful number, since it uses less digits than its factorization.

726253666247506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419803479528.

The product of its (nonzero) digits is 914457600, while the sum is 67.

The spelling of 726253666247506 in words is "seven hundred twenty-six trillion, two hundred fifty-three billion, six hundred sixty-six million, two hundred forty-seven thousand, five hundred six".