8540438650880 has 224 divisors, whose sum is σ = 21074309534304. Its totient is φ = 3319968301056.

The previous prime is 8540438650867. The next prime is 8540438650967. The reversal of 8540438650880 is 880568340458.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535218979 + ... + 1535224541.

Almost surely, 2^{8540438650880} is an apocalyptic number.

8540438650880 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 8540438650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10537154767152).

8540438650880 is an abundant number, since it is smaller than the sum of its proper divisors (12533870883424).

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

8540438650880 is a wasteful number, since it uses less digits than its factorization.

8540438650880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6644 (or 6620 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 59.

The spelling of 8540438650880 in words is "eight trillion, five hundred forty billion, four hundred thirty-eight million, six hundred fifty thousand, eight hundred eighty".