87871864094 has 16 divisors (see below), whose sum is σ = 159498510048. Its totient is φ = 35444113152.

The previous prime is 87871864081. The next prime is 87871864097. The reversal of 87871864094 is 49046817878.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87871864097) 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, 184604519 + ... + 184604994.

It is an arithmetic number, because the mean of its divisors is an integer number (9968656878).

Almost surely, 2^87871864094 is an apocalyptic number.

87871864094 is a deficient number, since it is larger than the sum of its proper divisors (71626645954).

87871864094 is a wasteful number, since it uses less digits than its factorization.

87871864094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369209539.

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 87871864094 in words is "eighty-seven billion, eight hundred seventy-one million, eight hundred sixty-four thousand, ninety-four".