5438779526380 has 192 divisors, whose sum is σ = 12883976017920. Its totient is φ = 1918424217600.

The previous prime is 5438779526363. The next prime is 5438779526423. The reversal of 5438779526380 is 836259778345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142241865 + ... + 142280095.

It is an arithmetic number, because the mean of its divisors is an integer number (67104041760).

Almost surely, 2^{5438779526380} 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 5438779526380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6441988008960).

5438779526380 is an abundant number, since it is smaller than the sum of its proper divisors (7445196491540).

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

5438779526380 is a wasteful number, since it uses less digits than its factorization.

5438779526380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38720 (or 38718 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 67.

The spelling of 5438779526380 in words is "five trillion, four hundred thirty-eight billion, seven hundred seventy-nine million, five hundred twenty-six thousand, three hundred eighty".