8540268727640 has 256 divisors, whose sum is σ = 21391330746240. Its totient is φ = 3048192000000.

The previous prime is 8540268727621. The next prime is 8540268727657. The reversal of 8540268727640 is 467278620458.

It is a self number, because there is not a number n which added to its sum of digits gives 8540268727640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2845806140 + ... + 2845809140.

Almost surely, 2^{8540268727640} 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 8540268727640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10695665373120).

8540268727640 is an abundant number, since it is smaller than the sum of its proper divisors (12851062018600).

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

8540268727640 is a wasteful number, since it uses less digits than its factorization.

8540268727640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3970 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 59.

The spelling of 8540268727640 in words is "eight trillion, five hundred forty billion, two hundred sixty-eight million, seven hundred twenty-seven thousand, six hundred forty".