84993658905 has 16 divisors (see below), whose sum is σ = 136531652544. Its totient is φ = 45149352000.

The previous prime is 84993658903. The next prime is 84993658907. The reversal of 84993658905 is 50985639948.

It is an interprime number because it is at equal distance from previous prime (84993658903) and next prime (84993658907).

It is not a de Polignac number, because 84993658905 - 2¹ = 84993658903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84993658903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11283574 + ... + 11291103.

It is an arithmetic number, because the mean of its divisors is an integer number (8533228284).

Almost surely, 2^84993658905 is an apocalyptic number.

It is an amenable number.

84993658905 is a deficient number, since it is larger than the sum of its proper divisors (51537993639).

84993658905 is a wasteful number, since it uses less digits than its factorization.

84993658905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22574936.

The product of its (nonzero) digits is 83980800, while the sum is 66.

The spelling of 84993658905 in words is "eighty-four billion, nine hundred ninety-three million, six hundred fifty-eight thousand, nine hundred five".