718442972447 has 4 divisors (see below), whose sum is σ = 730619972040. Its totient is φ = 706265972856.

The previous prime is 718442972417. The next prime is 718442972509. The reversal of 718442972447 is 744279244817.

It is a happy number.

718442972447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 718442972447 - 2¹⁸ = 718442710303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 12176999533 = 718442972447 / (7 + 1 + 8 + 4 + 4 + 2 + 9 + 7 + 2 + 4 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718442972417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6088499708 + ... + 6088499825.

It is an arithmetic number, because the mean of its divisors is an integer number (182654993010).

Almost surely, 2^718442972447 is an apocalyptic number.

718442972447 is a deficient number, since it is larger than the sum of its proper divisors (12176999593).

718442972447 is a wasteful number, since it uses less digits than its factorization.

718442972447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12176999592.

The product of its digits is 25288704, while the sum is 59.

The spelling of 718442972447 in words is "seven hundred eighteen billion, four hundred forty-two million, nine hundred seventy-two thousand, four hundred forty-seven".