20145426318 has 12 divisors (see below), whose sum is σ = 43648423728. Its totient is φ = 6715142100.

The previous prime is 20145426313. The next prime is 20145426319. The reversal of 20145426318 is 81362454102.

It is a happy number.

20145426318 is a `hidden beast` number, since 2 + 0 + 14 + 5 + 4 + 2 + 631 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145426311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559595158 + ... + 559595193.

It is an arithmetic number, because the mean of its divisors is an integer number (3637368644).

Almost surely, 2^20145426318 is an apocalyptic number.

20145426318 is an abundant number, since it is smaller than the sum of its proper divisors (23502997410).

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

20145426318 is a wasteful number, since it uses less digits than its factorization.

20145426318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119190359 (or 1119190356 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20145426318 in words is "twenty billion, one hundred forty-five million, four hundred twenty-six thousand, three hundred eighteen".