87534198558 has 40 divisors (see below), whose sum is σ = 206464686120. Its totient is φ = 27642377520.

The previous prime is 87534198553. The next prime is 87534198581. The reversal of 87534198558 is 85589143578.

87534198558 is a `hidden beast` number, since 8 + 7 + 534 + 1 + 98 + 5 + 5 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 87534198495 and 87534198504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87534198553) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14216253 + ... + 14222408.

It is an arithmetic number, because the mean of its divisors is an integer number (5161617153).

Almost surely, 2^87534198558 is an apocalyptic number.

87534198558 is an abundant number, since it is smaller than the sum of its proper divisors (118930487562).

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

87534198558 is a wasteful number, since it uses less digits than its factorization.

87534198558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28438694 (or 28438685 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 63.

The spelling of 87534198558 in words is "eighty-seven billion, five hundred thirty-four million, one hundred ninety-eight thousand, five hundred fifty-eight".