87148881218 has 16 divisors (see below), whose sum is σ = 157261139520. Its totient is φ = 35383756176.

The previous prime is 87148881217. The next prime is 87148881241. The reversal of 87148881218 is 81218884178.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87148881217) 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, 163813421 + ... + 163813952.

It is an arithmetic number, because the mean of its divisors is an integer number (9828821220).

Almost surely, 2^87148881218 is an apocalyptic number.

87148881218 is a deficient number, since it is larger than the sum of its proper divisors (70112258302).

87148881218 is a wasteful number, since it uses less digits than its factorization.

87148881218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327627401.

The product of its digits is 1835008, while the sum is 56.

The spelling of 87148881218 in words is "eighty-seven billion, one hundred forty-eight million, eight hundred eighty-one thousand, two hundred eighteen".