18052942420 has 24 divisors (see below), whose sum is σ = 39559492224. Its totient is φ = 6907212576.

The previous prime is 18052942417. The next prime is 18052942421. The reversal of 18052942420 is 2424925081.

It is a self number, because there is not a number n which added to its sum of digits gives 18052942420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052942421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19622304 + ... + 19623223.

It is an arithmetic number, because the mean of its divisors is an integer number (1648312176).

Almost surely, 2^18052942420 is an apocalyptic number.

18052942420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18052942420 is an abundant number, since it is smaller than the sum of its proper divisors (21506549804).

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

18052942420 is a wasteful number, since it uses less digits than its factorization.

18052942420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39245559 (or 39245557 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 18052942420 in words is "eighteen billion, fifty-two million, nine hundred forty-two thousand, four hundred twenty".