87887849165 has 8 divisors (see below), whose sum is σ = 107455332888. Its totient is φ = 68983670080.

The previous prime is 87887849083. The next prime is 87887849261. The reversal of 87887849165 is 56194878878.

It can be written as a sum of positive squares in 4 ways, for example, as 43509370921 + 44378478244 = 208589^2 + 210662^2 .

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

It is not a de Polignac number, because 87887849165 - 2¹² = 87887845069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165825866 + ... + 165826395.

It is an arithmetic number, because the mean of its divisors is an integer number (13431916611).

Almost surely, 2^87887849165 is an apocalyptic number.

It is an amenable number.

87887849165 is a deficient number, since it is larger than the sum of its proper divisors (19567483723).

87887849165 is a wasteful number, since it uses less digits than its factorization.

87887849165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331652319.

The product of its digits is 216760320, while the sum is 71.

The spelling of 87887849165 in words is "eighty-seven billion, eight hundred eighty-seven million, eight hundred forty-nine thousand, one hundred sixty-five".