8513375840 has 24 divisors (see below), whose sum is σ = 20112850800. Its totient is φ = 3405350272.

The previous prime is 8513375831. The next prime is 8513375867. The reversal of 8513375840 is 485733158.

It is a happy number.

It is a super-3 number, since 3×8513375840³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8513375791 and 8513375800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26604140 + ... + 26604459.

It is an arithmetic number, because the mean of its divisors is an integer number (838035450).

Almost surely, 2^8513375840 is an apocalyptic number.

8513375840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8513375840 is an abundant number, since it is smaller than the sum of its proper divisors (11599474960).

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

8513375840 is a wasteful number, since it uses less digits than its factorization.

8513375840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53208614 (or 53208606 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 8513375840 is about 92267.9567347191. The cubic root of 8513375840 is about 2041.8974912112.

The spelling of 8513375840 in words is "eight billion, five hundred thirteen million, three hundred seventy-five thousand, eight hundred forty".