4518616212390 has 128 divisors (see below), whose sum is σ = 13129976309760. Its totient is φ = 971553282048.

The previous prime is 4518616212377. The next prime is 4518616212391. The reversal of 4518616212390 is 932126168154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518616212391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6371224 + ... + 7044836.

It is an arithmetic number, because the mean of its divisors is an integer number (102577939920).

Almost surely, 2^{4518616212390} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4518616212390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6564988154880).

4518616212390 is an abundant number, since it is smaller than the sum of its proper divisors (8611360097370).

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

4518616212390 is a wasteful number, since it uses less digits than its factorization.

4518616212390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675526.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 4518616212390 in words is "four trillion, five hundred eighteen billion, six hundred sixteen million, two hundred twelve thousand, three hundred ninety".