18029939148 has 96 divisors (see below), whose sum is σ = 50369177600. Its totient is φ = 5544459072.

The previous prime is 18029939107. The next prime is 18029939167. The reversal of 18029939148 is 84193992081.

18029939148 is a `hidden beast` number, since 180 + 299 + 39 + 148 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18029939094 and 18029939103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3815115 + ... + 3819837.

Almost surely, 2^18029939148 is an apocalyptic number.

18029939148 is a gapful number since it is divisible by the number (18) 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 18029939148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25184588800).

18029939148 is an abundant number, since it is smaller than the sum of its proper divisors (32339238452).

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

18029939148 is a wasteful number, since it uses less digits than its factorization.

18029939148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468 (or 7460 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 18029939148 in words is "eighteen billion, twenty-nine million, nine hundred thirty-nine thousand, one hundred forty-eight".