82317161377861 has 8 divisors (see below), whose sum is σ = 82346050856160. Its totient is φ = 82288272616368.

The previous prime is 82317161377831. The next prime is 82317161377933. The reversal of 82317161377861 is 16877316171328.

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 82317161377861 - 2²⁵ = 82317127823429 is a prime.

It is a super-2 number, since 2×82317161377861² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82317161377861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82317161377831) 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, 344391730 + ... + 344630668.

It is an arithmetic number, because the mean of its divisors is an integer number (10293256357020).

Almost surely, 2^{82317161377861} is an apocalyptic number.

It is an amenable number.

82317161377861 is a deficient number, since it is larger than the sum of its proper divisors (28889478299).

82317161377861 is a wasteful number, since it uses less digits than its factorization.

82317161377861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358403.

The product of its digits is 14224896, while the sum is 61.

The spelling of 82317161377861 in words is "eighty-two trillion, three hundred seventeen billion, one hundred sixty-one million, three hundred seventy-seven thousand, eight hundred sixty-one".