8461169798478 has 16 divisors (see below), whose sum is σ = 16922786893056. Its totient is φ = 2820315383480.

The previous prime is 8461169798437. The next prime is 8461169798479. The reversal of 8461169798478 is 8748979611648.

It is a super-2 number, since 2×8461169798478² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461169798479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18391176 + ... + 18845627.

It is an arithmetic number, because the mean of its divisors is an integer number (1057674180816).

Almost surely, 2^{8461169798478} is an apocalyptic number.

8461169798478 is an abundant number, since it is smaller than the sum of its proper divisors (8461617094578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8461169798478 is a wasteful number, since it uses less digits than its factorization.

8461169798478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37274679.

The product of its digits is 1170505728, while the sum is 78.

The spelling of 8461169798478 in words is "eight trillion, four hundred sixty-one billion, one hundred sixty-nine million, seven hundred ninety-eight thousand, four hundred seventy-eight".