10520315642 has 8 divisors (see below), whose sum is σ = 15845953332. Its totient is φ = 5238331200.

The previous prime is 10520315633. The next prime is 10520315693. The reversal of 10520315642 is 24651302501.

It can be written as a sum of positive squares in 2 ways, for example, as 10265945041 + 254370601 = 101321^2 + 15949^2 .

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

It is a super-2 number, since 2×10520315642² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10912709 + ... + 10913672.

Almost surely, 2^10520315642 is an apocalyptic number.

10520315642 is a deficient number, since it is larger than the sum of its proper divisors (5325637690).

10520315642 is a wasteful number, since it uses less digits than its factorization.

10520315642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21826624.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 10520315642 in words is "ten billion, five hundred twenty million, three hundred fifteen thousand, six hundred forty-two".