1263059159643 has 12 divisors (see below), whose sum is σ = 1854327291648. Its totient is φ = 828235514160.

The previous prime is 1263059159641. The next prime is 1263059159731. The reversal of 1263059159643 is 3469519503621.

1263059159643 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 0 + 5 + 9 + 1 + 596 + 43 = 666.

It is not a de Polignac number, because 1263059159643 - 2¹ = 1263059159641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1263059159643.

It is not an unprimeable number, because it can be changed into a prime (1263059159641) 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 11 ways as a sum of consecutive naturals, for example, 1150326555 + ... + 1150327652.

It is an arithmetic number, because the mean of its divisors is an integer number (154527274304).

Almost surely, 2^{1263059159643} is an apocalyptic number.

1263059159643 is a deficient number, since it is larger than the sum of its proper divisors (591268132005).

1263059159643 is a wasteful number, since it uses less digits than its factorization.

1263059159643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300654274 (or 2300654271 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 1263059159643 in words is "one trillion, two hundred sixty-three billion, fifty-nine million, one hundred fifty-nine thousand, six hundred forty-three".