84555345917 has 8 divisors (see below), whose sum is σ = 96764747136. Its totient is φ = 72378461232.

The previous prime is 84555345913. The next prime is 84555345949. The reversal of 84555345917 is 71954355548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84555345917 - 2² = 84555345913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84555345913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8123558 + ... + 8133959.

It is an arithmetic number, because the mean of its divisors is an integer number (12095593392).

Almost surely, 2^84555345917 is an apocalyptic number.

It is an amenable number.

84555345917 is a deficient number, since it is larger than the sum of its proper divisors (12209401219).

84555345917 is a wasteful number, since it uses less digits than its factorization.

84555345917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258267.

The product of its digits is 15120000, while the sum is 56.

The spelling of 84555345917 in words is "eighty-four billion, five hundred fifty-five million, three hundred forty-five thousand, nine hundred seventeen".