1587172873173 has 8 divisors (see below), whose sum is σ = 2116380185088. Its totient is φ = 1058040405024.

The previous prime is 1587172873157. The next prime is 1587172873199. The reversal of 1587172873173 is 3713782717851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1587172873173 - 2⁴ = 1587172873157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587172873103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18661440 + ... + 18746297.

It is an arithmetic number, because the mean of its divisors is an integer number (264547523136).

Almost surely, 2^{1587172873173} is an apocalyptic number.

It is an amenable number.

1587172873173 is a deficient number, since it is larger than the sum of its proper divisors (529207311915).

1587172873173 is a wasteful number, since it uses less digits than its factorization.

1587172873173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37421883.

The product of its digits is 13829760, while the sum is 60.

The spelling of 1587172873173 in words is "one trillion, five hundred eighty-seven billion, one hundred seventy-two million, eight hundred seventy-three thousand, one hundred seventy-three".