88478215218 has 32 divisors (see below), whose sum is σ = 201932267520. Its totient is φ = 28695636720.

The previous prime is 88478215201. The next prime is 88478215279. The reversal of 88478215218 is 81251287488.

It is a happy number.

88478215218 is a `hidden beast` number, since 8 + 8 + 478 + 2 + 152 + 18 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22139698 + ... + 22143693.

It is an arithmetic number, because the mean of its divisors is an integer number (6310383360).

Almost surely, 2^88478215218 is an apocalyptic number.

88478215218 is an abundant number, since it is smaller than the sum of its proper divisors (113454052302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88478215218 is a wasteful number, since it uses less digits than its factorization.

88478215218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44283439 (or 44283433 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 54.

The spelling of 88478215218 in words is "eighty-eight billion, four hundred seventy-eight million, two hundred fifteen thousand, two hundred eighteen".