84889620915 has 96 divisors (see below), whose sum is σ = 157369175040. Its totient is φ = 38938268160.

The previous prime is 84889620899. The next prime is 84889620967. The reversal of 84889620915 is 51902698848.

It is not a de Polignac number, because 84889620915 - 2⁴ = 84889620899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35621814 + ... + 35624196.

It is an arithmetic number, because the mean of its divisors is an integer number (1639262240).

Almost surely, 2^84889620915 is an apocalyptic number.

84889620915 is a deficient number, since it is larger than the sum of its proper divisors (72479554125).

84889620915 is a wasteful number, since it uses less digits than its factorization.

84889620915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 84889620915 in words is "eighty-four billion, eight hundred eighty-nine million, six hundred twenty thousand, nine hundred fifteen".