8241399857247 has 8 divisors (see below), whose sum is σ = 10989062972544. Its totient is φ = 5494001656728.

The previous prime is 8241399857231. The next prime is 8241399857261. The reversal of 8241399857247 is 7427589931428.

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

It is not a de Polignac number, because 8241399857247 - 2⁴ = 8241399857231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8241399857267) 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, 66156093 + ... + 66280550.

It is an arithmetic number, because the mean of its divisors is an integer number (1373632871568).

Almost surely, 2^{8241399857247} is an apocalyptic number.

8241399857247 is a deficient number, since it is larger than the sum of its proper divisors (2747663115297).

8241399857247 is a wasteful number, since it uses less digits than its factorization.

8241399857247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132457389.

The product of its digits is 243855360, while the sum is 69.

The spelling of 8241399857247 in words is "eight trillion, two hundred forty-one billion, three hundred ninety-nine million, eight hundred fifty-seven thousand, two hundred forty-seven".