84467122161 has 4 divisors (see below), whose sum is σ = 112622829552. Its totient is φ = 56311414772.

The previous prime is 84467122127. The next prime is 84467122189. The reversal of 84467122161 is 16122176448.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84467122161 - 2²³ = 84458733553 is a prime.

It is a super-2 number, since 2×84467122161² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84467122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14077853691 + ... + 14077853696.

It is an arithmetic number, because the mean of its divisors is an integer number (28155707388).

Almost surely, 2^84467122161 is an apocalyptic number.

It is an amenable number.

84467122161 is a deficient number, since it is larger than the sum of its proper divisors (28155707391).

84467122161 is a wasteful number, since it uses less digits than its factorization.

84467122161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28155707390.

The product of its digits is 129024, while the sum is 42.

The spelling of 84467122161 in words is "eighty-four billion, four hundred sixty-seven million, one hundred twenty-two thousand, one hundred sixty-one".