8438026147840 has 384 divisors, whose sum is σ = 22489451712000. Its totient is φ = 3024034725888.

The previous prime is 8438026147739. The next prime is 8438026147849. The reversal of 8438026147840 is 487416208348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438026147849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398253727 + ... + 398274913.

It is an arithmetic number, because the mean of its divisors is an integer number (58566280500).

Almost surely, 2^{8438026147840} is an apocalyptic number.

8438026147840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8438026147840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11244725856000).

8438026147840 is an abundant number, since it is smaller than the sum of its proper divisors (14051425564160).

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

8438026147840 is a wasteful number, since it uses less digits than its factorization.

8438026147840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21345 (or 21325 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

The spelling of 8438026147840 in words is "eight trillion, four hundred thirty-eight billion, twenty-six million, one hundred forty-seven thousand, eight hundred forty".