1535063871842 has 18 divisors (see below), whose sum is σ = 2323452773187. Its totient is φ = 760641495936.

The previous prime is 1535063871793. The next prime is 1535063871853. The reversal of 1535063871842 is 2481783605351.

It can be written as a sum of positive squares in 5 ways, for example, as 867001214641 + 668062657201 = 931129^2 + 817351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=876089.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 197992238 + ... + 197999990.

Almost surely, 2^{1535063871842} is an apocalyptic number.

1535063871842 is a deficient number, since it is larger than the sum of its proper divisors (788388901345).

1535063871842 is an frugal number, since it uses more digits than its factorization.

1535063871842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15734 (or 7868 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 1535063871842 in words is "one trillion, five hundred thirty-five billion, sixty-three million, eight hundred seventy-one thousand, eight hundred forty-two".