84550520887 has 16 divisors (see below), whose sum is σ = 100157716800. Its totient is φ = 69835288320.

The previous prime is 84550520843. The next prime is 84550520903. The reversal of 84550520887 is 78802505548.

It is not a de Polignac number, because 84550520887 - 2¹¹ = 84550518839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84550520827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305814 + ... + 512467.

It is an arithmetic number, because the mean of its divisors is an integer number (6259857300).

Almost surely, 2^84550520887 is an apocalyptic number.

84550520887 is a deficient number, since it is larger than the sum of its proper divisors (15607195913).

84550520887 is a wasteful number, since it uses less digits than its factorization.

84550520887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818826.

The product of its (nonzero) digits is 3584000, while the sum is 52.

The spelling of 84550520887 in words is "eighty-four billion, five hundred fifty million, five hundred twenty thousand, eight hundred eighty-seven".