1173506891073 has 16 divisors (see below), whose sum is σ = 1709440445376. Its totient is φ = 710165743040.

The previous prime is 1173506890949. The next prime is 1173506891099. The reversal of 1173506891073 is 3701986053711.

It is a cyclic number.

It is not a de Polignac number, because 1173506891073 - 2¹⁶ = 1173506825537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1173506891773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26241186 + ... + 26285867.

It is an arithmetic number, because the mean of its divisors is an integer number (106840027836).

Almost surely, 2^{1173506891073} is an apocalyptic number.

It is an amenable number.

1173506891073 is a deficient number, since it is larger than the sum of its proper divisors (535933554303).

1173506891073 is a wasteful number, since it uses less digits than its factorization.

1173506891073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52527744.

The product of its (nonzero) digits is 952560, while the sum is 51.

The spelling of 1173506891073 in words is "one trillion, one hundred seventy-three billion, five hundred six million, eight hundred ninety-one thousand, seventy-three".