8461169798479 has 2 divisors, whose sum is σ = 8461169798480. Its totient is φ = 8461169798478.

The previous prime is 8461169798437. The next prime is 8461169798513. The reversal of 8461169798479 is 9748979611648.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8461169798479 is a prime.

It is a super-2 number, since 2×8461169798479² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8461169798399 and 8461169798408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8461169795479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230584899239 + 4230584899240.

It is an arithmetic number, because the mean of its divisors is an integer number (4230584899240).

Almost surely, 2^{8461169798479} is an apocalyptic number.

8461169798479 is a deficient number, since it is larger than the sum of its proper divisors (1).

8461169798479 is an equidigital number, since it uses as much as digits as its factorization.

8461169798479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1316818944, while the sum is 79.

The spelling of 8461169798479 in words is "eight trillion, four hundred sixty-one billion, one hundred sixty-nine million, seven hundred ninety-eight thousand, four hundred seventy-nine".