87171679250 has 16 divisors (see below), whose sum is σ = 163185384024. Its totient is φ = 34868671600.

The previous prime is 87171679171. The next prime is 87171679267. The reversal of 87171679250 is 5297617178.

It can be written as a sum of positive squares in 4 ways, for example, as 3406006321 + 83765672929 = 58361^2 + 289423^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87171679192 and 87171679201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174343109 + ... + 174343608.

Almost surely, 2^87171679250 is an apocalyptic number.

87171679250 is a deficient number, since it is larger than the sum of its proper divisors (76013704774).

87171679250 is a wasteful number, since it uses less digits than its factorization.

87171679250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348686734 (or 348686724 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 87171679250 in words is "eighty-seven billion, one hundred seventy-one million, six hundred seventy-nine thousand, two hundred fifty".