18443131070 has 96 divisors (see below), whose sum is σ = 41695819200. Its totient is φ = 5821853184.

The previous prime is 18443131067. The next prime is 18443131079. The reversal of 18443131070 is 7013134481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18443131079) 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 47 ways as a sum of consecutive naturals, for example, 2601791 + ... + 2608869.

It is an arithmetic number, because the mean of its divisors is an integer number (434331450).

Almost surely, 2^18443131070 is an apocalyptic number.

18443131070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18443131070 is an abundant number, since it is smaller than the sum of its proper divisors (23252688130).

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

18443131070 is a wasteful number, since it uses less digits than its factorization.

18443131070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522 (or 7515 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 18443131070 in words is "eighteen billion, four hundred forty-three million, one hundred thirty-one thousand, seventy".