171357662887 has 16 divisors (see below), whose sum is σ = 183307069440. Its totient is φ = 159809712832.

The previous prime is 171357662851. The next prime is 171357662893. The reversal of 171357662887 is 788266753171.

It is not a de Polignac number, because 171357662887 - 2⁷ = 171357662759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171357662837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17062 + ... + 585667.

It is an arithmetic number, because the mean of its divisors is an integer number (11456691840).

Almost surely, 2^171357662887 is an apocalyptic number.

171357662887 is a deficient number, since it is larger than the sum of its proper divisors (11949406553).

171357662887 is a wasteful number, since it uses less digits than its factorization.

171357662887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603062.

The product of its digits is 23708160, while the sum is 61.

The spelling of 171357662887 in words is "one hundred seventy-one billion, three hundred fifty-seven million, six hundred sixty-two thousand, eight hundred eighty-seven".