18179042112 has 448 divisors, whose sum is σ = 66995527680. Its totient is φ = 4696012800.

The previous prime is 18179042107. The next prime is 18179042143. The reversal of 18179042112 is 21124097181.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42178537 + ... + 42178967.

Almost surely, 2^18179042112 is an apocalyptic number.

18179042112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18179042112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33497763840).

18179042112 is an abundant number, since it is smaller than the sum of its proper divisors (48816485568).

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

18179042112 is a wasteful number, since it uses less digits than its factorization.

18179042112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 18179042112 in words is "eighteen billion, one hundred seventy-nine million, forty-two thousand, one hundred twelve".