5221186849578 has 128 divisors (see below), whose sum is σ = 12348955035648. Its totient is φ = 1440822898944.

The previous prime is 5221186849577. The next prime is 5221186849667. The reversal of 5221186849578 is 8759486811225.

It is not an unprimeable number, because it can be changed into a prime (5221186849577) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242643276 + ... + 242664792.

It is an arithmetic number, because the mean of its divisors is an integer number (96476211216).

Almost surely, 2^{5221186849578} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5221186849578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6174477517824).

5221186849578 is an abundant number, since it is smaller than the sum of its proper divisors (7127768186070).

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

5221186849578 is a wasteful number, since it uses less digits than its factorization.

5221186849578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23276.

The product of its digits is 77414400, while the sum is 66.

The spelling of 5221186849578 in words is "five trillion, two hundred twenty-one billion, one hundred eighty-six million, eight hundred forty-nine thousand, five hundred seventy-eight".