5515881896790 has 192 divisors, whose sum is σ = 15112414886400. Its totient is φ = 1393994188800.

The previous prime is 5515881896773. The next prime is 5515881896797. The reversal of 5515881896790 is 976981885155.

5515881896790 is a `hidden beast` number, since 5 + 515 + 8 + 8 + 18 + 9 + 6 + 7 + 90 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515881896797) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38902746 + ... + 39044274.

It is an arithmetic number, because the mean of its divisors is an integer number (78710494200).

Almost surely, 2^{5515881896790} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5515881896790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7556207443200).

5515881896790 is an abundant number, since it is smaller than the sum of its proper divisors (9596532989610).

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

5515881896790 is a wasteful number, since it uses less digits than its factorization.

5515881896790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141863 (or 141860 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 72.

The spelling of 5515881896790 in words is "five trillion, five hundred fifteen billion, eight hundred eighty-one million, eight hundred ninety-six thousand, seven hundred ninety".