18201083740 has 96 divisors (see below), whose sum is σ = 44195364864. Its totient is φ = 6167508480.

The previous prime is 18201083717. The next prime is 18201083743. The reversal of 18201083740 is 4738010281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18201083696 and 18201083705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18201083743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4994359 + ... + 4998001.

It is an arithmetic number, because the mean of its divisors is an integer number (460368384).

Almost surely, 2^18201083740 is an apocalyptic number.

18201083740 is a gapful number since it is divisible by the number (10) 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 18201083740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22097682432).

18201083740 is an abundant number, since it is smaller than the sum of its proper divisors (25994281124).

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

18201083740 is a wasteful number, since it uses less digits than its factorization.

18201083740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4065 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 18201083740 in words is "eighteen billion, two hundred one million, eighty-three thousand, seven hundred forty".