8502142540 has 24 divisors (see below), whose sum is σ = 17932476240. Its totient is φ = 3386004288.

The previous prime is 8502142513. The next prime is 8502142547. The reversal of 8502142540 is 452412058.

It is not an unprimeable number, because it can be changed into a prime (8502142547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923602 + ... + 932761.

It is an arithmetic number, because the mean of its divisors is an integer number (747186510).

Almost surely, 2^8502142540 is an apocalyptic number.

It is an amenable number.

8502142540 is an abundant number, since it is smaller than the sum of its proper divisors (9430333700).

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

8502142540 is a wasteful number, since it uses less digits than its factorization.

8502142540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856601 (or 1856599 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 8502142540 is about 92207.0633953820. The cubic root of 8502142540 is about 2040.9990092852. Note that the first 3 decimals are identical.

Adding to 8502142540 its reverse (452412058), we get a palindrome (8954554598).

The spelling of 8502142540 in words is "eight billion, five hundred two million, one hundred forty-two thousand, five hundred forty".