87528328834 has 8 divisors (see below), whose sum is σ = 131706666108. Its totient is φ = 43626106800.

The previous prime is 87528328829. The next prime is 87528328837. The reversal of 87528328834 is 43882382578.

It can be written as a sum of positive squares in 2 ways, for example, as 58949412025 + 28578916809 = 242795^2 + 169053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87528328834² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87528328837) 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, 69028017 + ... + 69029284.

Almost surely, 2^87528328834 is an apocalyptic number.

87528328834 is a deficient number, since it is larger than the sum of its proper divisors (44178337274).

87528328834 is a wasteful number, since it uses less digits than its factorization.

87528328834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138057620.

The product of its digits is 20643840, while the sum is 58.

The spelling of 87528328834 in words is "eighty-seven billion, five hundred twenty-eight million, three hundred twenty-eight thousand, eight hundred thirty-four".