87032521078 has 32 divisors (see below), whose sum is σ = 133020518400. Its totient is φ = 42700042944.

The previous prime is 87032521073. The next prime is 87032521129. The reversal of 87032521078 is 87012523078.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87032521073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17799258 + ... + 17804146.

It is an arithmetic number, because the mean of its divisors is an integer number (4156891200).

Almost surely, 2^87032521078 is an apocalyptic number.

87032521078 is a deficient number, since it is larger than the sum of its proper divisors (45987997322).

87032521078 is a wasteful number, since it uses less digits than its factorization.

87032521078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 87032521078 in words is "eighty-seven billion, thirty-two million, five hundred twenty-one thousand, seventy-eight".