145278742218 has 32 divisors (see below), whose sum is σ = 294164968896. Its totient is φ = 47828030208.

The previous prime is 145278742211. The next prime is 145278742247. The reversal of 145278742218 is 812247872541.

145278742218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145278742218² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145278742211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186705 + ... + 570452.

It is an arithmetic number, because the mean of its divisors is an integer number (9192655278).

Almost surely, 2^145278742218 is an apocalyptic number.

145278742218 is an abundant number, since it is smaller than the sum of its proper divisors (148886226678).

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

145278742218 is a wasteful number, since it uses less digits than its factorization.

145278742218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757558.

The product of its digits is 2007040, while the sum is 51.

The spelling of 145278742218 in words is "one hundred forty-five billion, two hundred seventy-eight million, seven hundred forty-two thousand, two hundred eighteen".