8379534221261 has 8 divisors (see below), whose sum is σ = 9579325795200. Its totient is φ = 7180421461488.

The previous prime is 8379534221221. The next prime is 8379534221263. The reversal of 8379534221261 is 1621224359738.

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 8379534221261 - 2³⁸ = 8104656314317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8379534221263) 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, 169677086 + ... + 169726463.

It is an arithmetic number, because the mean of its divisors is an integer number (1197415724400).

Almost surely, 2^{8379534221261} is an apocalyptic number.

It is an amenable number.

8379534221261 is a deficient number, since it is larger than the sum of its proper divisors (1199791573939).

8379534221261 is a wasteful number, since it uses less digits than its factorization.

8379534221261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339407083.

The product of its digits is 4354560, while the sum is 53.

The spelling of 8379534221261 in words is "eight trillion, three hundred seventy-nine billion, five hundred thirty-four million, two hundred twenty-one thousand, two hundred sixty-one".