84905368918 has 8 divisors (see below), whose sum is σ = 131749710480. Its totient is φ = 40988798760.

The previous prime is 84905368903. The next prime is 84905368927. The reversal of 84905368918 is 81986350948.

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

It is a super-2 number, since 2×84905368918² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 731942778 + ... + 731942893.

It is an arithmetic number, because the mean of its divisors is an integer number (16468713810).

Almost surely, 2^84905368918 is an apocalyptic number.

84905368918 is a deficient number, since it is larger than the sum of its proper divisors (46844341562).

84905368918 is a wasteful number, since it uses less digits than its factorization.

84905368918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463885702.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 84905368918 in words is "eighty-four billion, nine hundred five million, three hundred sixty-eight thousand, nine hundred eighteen".