84524987520 has 96 divisors (see below), whose sum is σ = 291875367420. Its totient is φ = 22539995136.

The previous prime is 84524987497. The next prime is 84524987537. The reversal of 84524987520 is 2578942548.

84524987520 is a `hidden beast` number, since 8 + 4 + 5 + 24 + 98 + 7 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75211965504 + 9313022016 = 274248^2 + 96504^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7331479 + ... + 7342998.

Almost surely, 2^84524987520 is an apocalyptic number.

84524987520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84524987520 is an abundant number, since it is smaller than the sum of its proper divisors (207350379900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84524987520 is a wasteful number, since it uses less digits than its factorization.

84524987520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674502 (or 14674487 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 84524987520 in words is "eighty-four billion, five hundred twenty-four million, nine hundred eighty-seven thousand, five hundred twenty".