84897910305 has 48 divisors (see below), whose sum is σ = 158955241536. Its totient is φ = 41669527680.

The previous prime is 84897910303. The next prime is 84897910313. The reversal of 84897910305 is 50301979848.

It is not a de Polignac number, because 84897910305 - 2¹ = 84897910303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84897910303) 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 47 ways as a sum of consecutive naturals, for example, 25587 + ... + 412856.

It is an arithmetic number, because the mean of its divisors is an integer number (3311567532).

Almost surely, 2^84897910305 is an apocalyptic number.

It is an amenable number.

84897910305 is a deficient number, since it is larger than the sum of its proper divisors (74057331231).

84897910305 is a wasteful number, since it uses less digits than its factorization.

84897910305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438798 (or 438795 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 84897910305 in words is "eighty-four billion, eight hundred ninety-seven million, nine hundred ten thousand, three hundred five".