84208471445 has 16 divisors (see below), whose sum is σ = 117379118208. Its totient is φ = 56796344640.

The previous prime is 84208471441. The next prime is 84208471469. The reversal of 84208471445 is 54417480248.

It is not a de Polignac number, because 84208471445 - 2² = 84208471441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84208471445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84208471441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19718819 + ... + 19723088.

It is an arithmetic number, because the mean of its divisors is an integer number (7336194888).

Almost surely, 2^84208471445 is an apocalyptic number.

It is an amenable number.

84208471445 is a deficient number, since it is larger than the sum of its proper divisors (33170646763).

84208471445 is a wasteful number, since it uses less digits than its factorization.

84208471445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39441980.

The product of its (nonzero) digits is 1146880, while the sum is 47.

The spelling of 84208471445 in words is "eighty-four billion, two hundred eight million, four hundred seventy-one thousand, four hundred forty-five".