8520240639142 has 8 divisors (see below), whose sum is σ = 12780374295600. Its totient is φ = 4260115873944.

The previous prime is 8520240639137. The next prime is 8520240639167. The reversal of 8520240639142 is 2419360420258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8520240639092 and 8520240639101.

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, 1271484 + ... + 4319392.

It is an arithmetic number, because the mean of its divisors is an integer number (1597546786950).

Almost surely, 2^{8520240639142} is an apocalyptic number.

8520240639142 is a deficient number, since it is larger than the sum of its proper divisors (4260133656458).

8520240639142 is a wasteful number, since it uses less digits than its factorization.

8520240639142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445630.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 8520240639142 in words is "eight trillion, five hundred twenty billion, two hundred forty million, six hundred thirty-nine thousand, one hundred forty-two".