171087425688 has 32 divisors (see below), whose sum is σ = 450230068800. Its totient is φ = 54027607968.

The previous prime is 171087425651. The next prime is 171087425699. The reversal of 171087425688 is 886524780171.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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, 187595406 + ... + 187596317.

It is an arithmetic number, because the mean of its divisors is an integer number (14069689650).

Almost surely, 2^171087425688 is an apocalyptic number.

It is an amenable number.

171087425688 is an abundant number, since it is smaller than the sum of its proper divisors (279142643112).

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

171087425688 is a wasteful number, since it uses less digits than its factorization.

171087425688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375191751 (or 375191747 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 171087425688 in words is "one hundred seventy-one billion, eighty-seven million, four hundred twenty-five thousand, six hundred eighty-eight".