87530143853 has 4 divisors (see below), whose sum is σ = 87534077148. Its totient is φ = 87526210560.

The previous prime is 87530143829. The next prime is 87530143861. The reversal of 87530143853 is 35834103578.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18666937129 + 68863206724 = 136627^2 + 262418^2 .

It is a cyclic number.

It is not a de Polignac number, because 87530143853 - 2³⁰ = 86456402029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87530143798 and 87530143807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87530143153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933076 + ... + 1977837.

It is an arithmetic number, because the mean of its divisors is an integer number (21883519287).

Almost surely, 2^87530143853 is an apocalyptic number.

It is an amenable number.

87530143853 is a deficient number, since it is larger than the sum of its proper divisors (3933295).

87530143853 is a wasteful number, since it uses less digits than its factorization.

87530143853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933294.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 87530143853 in words is "eighty-seven billion, five hundred thirty million, one hundred forty-three thousand, eight hundred fifty-three".