3518781063744 has 448 divisors, whose sum is σ = 9945321345792. Its totient is φ = 1096453324800.

The previous prime is 3518781063727. The next prime is 3518781063751. The reversal of 3518781063744 is 4473601878153.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6504216114 + ... + 6504216654.

It is an arithmetic number, because the mean of its divisors is an integer number (22199378004).

Almost surely, 2^{3518781063744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3518781063744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4972660672896).

3518781063744 is an abundant number, since it is smaller than the sum of its proper divisors (6426540282048).

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

3518781063744 is a wasteful number, since it uses less digits than its factorization.

3518781063744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 3518781063744 in words is "three trillion, five hundred eighteen billion, seven hundred eighty-one million, sixty-three thousand, seven hundred forty-four".