1043663817173 has 8 divisors (see below), whose sum is σ = 1072032178560. Its totient is φ = 1015434177120.

The previous prime is 1043663817137. The next prime is 1043663817223. The reversal of 1043663817173 is 3717183663401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1043663817173 - 2⁶ = 1043663817109 is a prime.

It is a super-2 number, since 2×1043663817173² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043663817373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34665083 + ... + 34695176.

It is an arithmetic number, because the mean of its divisors is an integer number (134004022320).

Almost surely, 2^{1043663817173} is an apocalyptic number.

It is an amenable number.

1043663817173 is a deficient number, since it is larger than the sum of its proper divisors (28368361387).

1043663817173 is an equidigital number, since it uses as much as digits as its factorization.

1043663817173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69360667.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 1043663817173 in words is "one trillion, forty-three billion, six hundred sixty-three million, eight hundred seventeen thousand, one hundred seventy-three".