84404199169 has 4 divisors (see below), whose sum is σ = 84457654960. Its totient is φ = 84350743380.

The previous prime is 84404199167. The next prime is 84404199197. The reversal of 84404199169 is 96199140448.

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 84404199169 - 2¹ = 84404199167 is a prime.

It is a super-2 number, since 2×84404199169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84404199167) 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 3 ways as a sum of consecutive naturals, for example, 26725527 + ... + 26728684.

It is an arithmetic number, because the mean of its divisors is an integer number (21114413740).

Almost surely, 2^84404199169 is an apocalyptic number.

It is an amenable number.

84404199169 is a deficient number, since it is larger than the sum of its proper divisors (53455791).

84404199169 is a wasteful number, since it uses less digits than its factorization.

84404199169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53455790.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 84404199169 in words is "eighty-four billion, four hundred four million, one hundred ninety-nine thousand, one hundred sixty-nine".