18119004240 has 80 divisors (see below), whose sum is σ = 56225115648. Its totient is φ = 4826899968.

The previous prime is 18119004151. The next prime is 18119004247. The reversal of 18119004240 is 4240091181.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 18119004198 and 18119004207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119004247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205857 + ... + 280383.

Almost surely, 2^18119004240 is an apocalyptic number.

18119004240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18119004240 is an abundant number, since it is smaller than the sum of its proper divisors (38106111408).

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

18119004240 is a wasteful number, since it uses less digits than its factorization.

18119004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75556 (or 75550 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 18119004240 in words is "eighteen billion, one hundred nineteen million, four thousand, two hundred forty".