87031757170817 has 8 divisors (see below), whose sum is σ = 87044607089160. Its totient is φ = 87018908221440.

The previous prime is 87031757170789. The next prime is 87031757170843. The reversal of 87031757170817 is 71807175713078.

It can be written as a sum of positive squares in 4 ways, for example, as 8557122665536 + 78474634505281 = 2925256^2 + 8858591^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87031757170817 - 2¹² = 87031757166721 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 87031757170817.

It is not an unprimeable number, because it can be changed into a prime (87031757170877) 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, 190309409 + ... + 190766177.

It is an arithmetic number, because the mean of its divisors is an integer number (10880575886145).

Almost surely, 2^{87031757170817} is an apocalyptic number.

It is an amenable number.

87031757170817 is a deficient number, since it is larger than the sum of its proper divisors (12849918343).

87031757170817 is a wasteful number, since it uses less digits than its factorization.

87031757170817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484483.

The product of its (nonzero) digits is 16134720, while the sum is 62.

The spelling of 87031757170817 in words is "eighty-seven trillion, thirty-one billion, seven hundred fifty-seven million, one hundred seventy thousand, eight hundred seventeen".