87171548451101 has 8 divisors (see below), whose sum is σ = 87215589358200. Its totient is φ = 87127515694080.

The previous prime is 87171548451059. The next prime is 87171548451133. The reversal of 87171548451101 is 10115484517178.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44529329380900 + 42642219070201 = 6673030^2 + 6530101^2 .

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 87171548451101 - 2⁶ = 87171548451037 is a prime.

It is a super-2 number, since 2×87171548451101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87171548451901) 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, 19416485 + ... + 23480693.

It is an arithmetic number, because the mean of its divisors is an integer number (10901948669775).

Almost surely, 2^{87171548451101} is an apocalyptic number.

It is an amenable number.

87171548451101 is a deficient number, since it is larger than the sum of its proper divisors (44040907099).

87171548451101 is a wasteful number, since it uses less digits than its factorization.

87171548451101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075039.

The product of its (nonzero) digits is 1254400, while the sum is 53.

The spelling of 87171548451101 in words is "eighty-seven trillion, one hundred seventy-one billion, five hundred forty-eight million, four hundred fifty-one thousand, one hundred one".