87056718187156 has 12 divisors (see below), whose sum is σ = 152391377189268. Its totient is φ = 43516324704512.

The previous prime is 87056718187091. The next prime is 87056718187157. The reversal of 87056718187156 is 65178181765078.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3472691882256 + 83584026304900 = 1863516^2 + 9142430^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87056718187157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008580991 + ... + 3008609926.

It is an arithmetic number, because the mean of its divisors is an integer number (12699281432439).

Almost surely, 2^{87056718187156} is an apocalyptic number.

It is an amenable number.

87056718187156 is a deficient number, since it is larger than the sum of its proper divisors (65334659002112).

87056718187156 is a wasteful number, since it uses less digits than its factorization.

87056718187156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6017194538 (or 6017194536 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 70.

The spelling of 87056718187156 in words is "eighty-seven trillion, fifty-six billion, seven hundred eighteen million, one hundred eighty-seven thousand, one hundred fifty-six".