84445145697 has 16 divisors (see below), whose sum is σ = 122834573568. Its totient is φ = 51176680080.

The previous prime is 84445145677. The next prime is 84445145699. The reversal of 84445145697 is 79654154448.

It is not a de Polignac number, because 84445145697 - 2¹² = 84445141601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84445145699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069458 + ... + 1145700.

It is an arithmetic number, because the mean of its divisors is an integer number (7677160848).

Almost surely, 2^84445145697 is an apocalyptic number.

It is an amenable number.

84445145697 is a deficient number, since it is larger than the sum of its proper divisors (38389427871).

84445145697 is a wasteful number, since it uses less digits than its factorization.

84445145697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109820.

The product of its digits is 19353600, while the sum is 57.

The spelling of 84445145697 in words is "eighty-four billion, four hundred forty-five million, one hundred forty-five thousand, six hundred ninety-seven".