87170545461 has 8 divisors (see below), whose sum is σ = 116748593920. Its totient is φ = 57853096992.

The previous prime is 87170545457. The next prime is 87170545471. The reversal of 87170545461 is 16454507178.

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

It is not a de Polignac number, because 87170545461 - 2² = 87170545457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87170545461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87170545421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65149216 + ... + 65150553.

It is an arithmetic number, because the mean of its divisors is an integer number (14593574240).

Almost surely, 2^87170545461 is an apocalyptic number.

It is an amenable number.

87170545461 is a deficient number, since it is larger than the sum of its proper divisors (29578048459).

87170545461 is a wasteful number, since it uses less digits than its factorization.

87170545461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130299995.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 87170545461 in words is "eighty-seven billion, one hundred seventy million, five hundred forty-five thousand, four hundred sixty-one".