87148536885 has 48 divisors (see below), whose sum is σ = 151505787888. Its totient is φ = 46341504000.

The previous prime is 87148536847. The next prime is 87148536887. The reversal of 87148536885 is 58863584178.

87148536885 is a `hidden beast` number, since 8 + 7 + 14 + 8 + 536 + 8 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 20655725841 + 66492811044 = 143721^2 + 257862^2 .

It is not a de Polignac number, because 87148536885 - 2⁶ = 87148536821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87148536887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27394995 + ... + 27398175.

It is an arithmetic number, because the mean of its divisors is an integer number (3156370581).

Almost surely, 2^87148536885 is an apocalyptic number.

It is an amenable number.

87148536885 is a deficient number, since it is larger than the sum of its proper divisors (64357251003).

87148536885 is a wasteful number, since it uses less digits than its factorization.

87148536885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806 (or 4803 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 87148536885 in words is "eighty-seven billion, one hundred forty-eight million, five hundred thirty-six thousand, eight hundred eighty-five".