84508506621 has 48 divisors (see below), whose sum is σ = 152218405248. Its totient is φ = 43891891200.

The previous prime is 84508506619. The next prime is 84508506623. The reversal of 84508506621 is 12660580548.

84508506621 is a `hidden beast` number, since 84 + 5 + 0 + 8 + 506 + 62 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (84508506619) and next prime (84508506623).

It is not a de Polignac number, because 84508506621 - 2¹ = 84508506619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84508506623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5065125 + ... + 5081781.

It is an arithmetic number, because the mean of its divisors is an integer number (3171216776).

Almost surely, 2^84508506621 is an apocalyptic number.

It is an amenable number.

84508506621 is a deficient number, since it is larger than the sum of its proper divisors (67709898627).

84508506621 is a wasteful number, since it uses less digits than its factorization.

84508506621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002 (or 23999 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 84508506621 in words is "eighty-four billion, five hundred eight million, five hundred six thousand, six hundred twenty-one".