88478635518 has 144 divisors (see below), whose sum is σ = 238479714720. Its totient is φ = 23213039616.

The previous prime is 88478635513. The next prime is 88478635543. The reversal of 88478635518 is 81553687488.

88478635518 is a `hidden beast` number, since 8 + 8 + 4 + 7 + 86 + 35 + 518 = 666.

It is a super-2 number, since 2×88478635518² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88478635513) 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 71 ways as a sum of consecutive naturals, for example, 4098978 + ... + 4120506.

It is an arithmetic number, because the mean of its divisors is an integer number (1656109130).

Almost surely, 2^88478635518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88478635518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119239857360).

88478635518 is an abundant number, since it is smaller than the sum of its proper divisors (150001079202).

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

88478635518 is a wasteful number, since it uses less digits than its factorization.

88478635518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21763 (or 21747 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 88478635518 in words is "eighty-eight billion, four hundred seventy-eight million, six hundred thirty-five thousand, five hundred eighteen".