86171435604 has 120 divisors (see below), whose sum is σ = 237254864000. Its totient is φ = 27197182080.

The previous prime is 86171435593. The next prime is 86171435617. The reversal of 86171435604 is 40653417168.

86171435604 is a `hidden beast` number, since 8 + 6 + 1 + 7 + 1 + 4 + 35 + 604 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 86171435604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18767349 + ... + 18771939.

Almost surely, 2^86171435604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86171435604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118627432000).

86171435604 is an abundant number, since it is smaller than the sum of its proper divisors (151083428396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86171435604 is a wasteful number, since it uses less digits than its factorization.

86171435604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675 (or 7664 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 86171435604 in words is "eighty-six billion, one hundred seventy-one million, four hundred thirty-five thousand, six hundred four".