47245778321717 has 8 divisors (see below), whose sum is σ = 47703537364224. Its totient is φ = 46790214766848.

The previous prime is 47245778321669. The next prime is 47245778321741. The reversal of 47245778321717 is 71712387754274.

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

It is a cyclic number.

It is not a de Polignac number, because 47245778321717 - 2¹⁶ = 47245778256181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47245778320717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548828663 + ... + 548914740.

It is an arithmetic number, because the mean of its divisors is an integer number (5962942170528).

Almost surely, 2^{47245778321717} is an apocalyptic number.

It is an amenable number.

47245778321717 is a deficient number, since it is larger than the sum of its proper divisors (457759042507).

47245778321717 is a wasteful number, since it uses less digits than its factorization.

47245778321717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097743819.

The product of its digits is 129077760, while the sum is 65.

The spelling of 47245778321717 in words is "forty-seven trillion, two hundred forty-five billion, seven hundred seventy-eight million, three hundred twenty-one thousand, seven hundred seventeen".