18162938430 has 192 divisors, whose sum is σ = 58203250560. Its totient is φ = 3826787328.

The previous prime is 18162938419. The next prime is 18162938449. The reversal of 18162938430 is 3483926181.

18162938430 is a `hidden beast` number, since 18 + 1 + 629 + 3 + 8 + 4 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 8950656 + ... + 8952684.

It is an arithmetic number, because the mean of its divisors is an integer number (303141930).

Almost surely, 2^18162938430 is an apocalyptic number.

18162938430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18162938430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29101625280).

18162938430 is an abundant number, since it is smaller than the sum of its proper divisors (40040312130).

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

18162938430 is a wasteful number, since it uses less digits than its factorization.

18162938430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155 (or 3152 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 18162938430 in words is "eighteen billion, one hundred sixty-two million, nine hundred thirty-eight thousand, four hundred thirty".