1042650987559 has 4 divisors (see below), whose sum is σ = 1087983639216. Its totient is φ = 997318335904.

The previous prime is 1042650987517. The next prime is 1042650987589. The reversal of 1042650987559 is 9557890562401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042650987559 - 2⁷ = 1042650987431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042650987497 and 1042650987506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042650987509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22666325794 + ... + 22666325839.

It is an arithmetic number, because the mean of its divisors is an integer number (271995909804).

Almost surely, 2^{1042650987559} is an apocalyptic number.

1042650987559 is a deficient number, since it is larger than the sum of its proper divisors (45332651657).

1042650987559 is an equidigital number, since it uses as much as digits as its factorization.

1042650987559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45332651656.

The product of its (nonzero) digits is 27216000, while the sum is 61.

The spelling of 1042650987559 in words is "one trillion, forty-two billion, six hundred fifty million, nine hundred eighty-seven thousand, five hundred fifty-nine".