18348642322902 has 144 divisors (see below), whose sum is σ = 41707940955408. Its totient is φ = 5828795320320.

The previous prime is 18348642322897. The next prime is 18348642322903. The reversal of 18348642322902 is 20922324684381.

18348642322902 is a `hidden beast` number, since 1 + 8 + 3 + 486 + 42 + 32 + 2 + 90 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18348642322903) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1498943502 + ... + 1498955742.

It is an arithmetic number, because the mean of its divisors is an integer number (289638478857).

Almost surely, 2^{18348642322902} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18348642322902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20853970477704).

18348642322902 is an abundant number, since it is smaller than the sum of its proper divisors (23359298632506).

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

18348642322902 is a wasteful number, since it uses less digits than its factorization.

18348642322902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583 (or 13551 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 18348642322902 in words is "eighteen trillion, three hundred forty-eight billion, six hundred forty-two million, three hundred twenty-two thousand, nine hundred two".