8111000807540 has 24 divisors (see below), whose sum is σ = 17582556590592. Its totient is φ = 3139742247840.

The previous prime is 8111000807501. The next prime is 8111000807543. The reversal of 8111000807540 is 457080001118.

It is a super-3 number, since 3×8111000807540³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8111000807540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8111000807543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6541129064 + ... + 6541130303.

It is an arithmetic number, because the mean of its divisors is an integer number (732606524608).

Almost surely, 2^{8111000807540} is an apocalyptic number.

It is an amenable number.

8111000807540 is an abundant number, since it is smaller than the sum of its proper divisors (9471555783052).

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

8111000807540 is a wasteful number, since it uses less digits than its factorization.

8111000807540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13082259407 (or 13082259405 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 35.

Adding to 8111000807540 its reverse (457080001118), we get a palindrome (8568080808658).

The spelling of 8111000807540 in words is "eight trillion, one hundred eleven billion, eight hundred seven thousand, five hundred forty".