42054441518 has 4 divisors (see below), whose sum is σ = 63081662280. Its totient is φ = 21027220758.

The previous prime is 42054441503. The next prime is 42054441523. The reversal of 42054441518 is 81514445024.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10513610378 + ... + 10513610381.

It is an arithmetic number, because the mean of its divisors is an integer number (15770415570).

Almost surely, 2^42054441518 is an apocalyptic number.

42054441518 is a deficient number, since it is larger than the sum of its proper divisors (21027220762).

42054441518 is a wasteful number, since it uses less digits than its factorization.

42054441518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21027220761.

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 42054441518 in words is "forty-two billion, fifty-four million, four hundred forty-one thousand, five hundred eighteen".