145824781218 has 32 divisors (see below), whose sum is σ = 295803187200. Its totient is φ = 47916202320.

The previous prime is 145824781213. The next prime is 145824781229. The reversal of 145824781218 is 812187428541.

It is not an unprimeable number, because it can be changed into a prime (145824781213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3175183 + ... + 3220781.

It is an arithmetic number, because the mean of its divisors is an integer number (9243849600).

Almost surely, 2^145824781218 is an apocalyptic number.

145824781218 is an abundant number, since it is smaller than the sum of its proper divisors (149978405982).

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

145824781218 is a wasteful number, since it uses less digits than its factorization.

145824781218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53182.

The product of its digits is 1146880, while the sum is 51.

The spelling of 145824781218 in words is "one hundred forty-five billion, eight hundred twenty-four million, seven hundred eighty-one thousand, two hundred eighteen".