7173123435545 has 16 divisors (see below), whose sum is σ = 9114301491840. Its totient is φ = 5400812446464.

The previous prime is 7173123435539. The next prime is 7173123435559. The reversal of 7173123435545 is 5455343213717.

It is not a de Polignac number, because 7173123435545 - 2¹⁸ = 7173123173401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7173123435493 and 7173123435502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2704196 + ... + 4653914.

It is an arithmetic number, because the mean of its divisors is an integer number (569643843240).

Almost surely, 2^{7173123435545} is an apocalyptic number.

It is an amenable number.

7173123435545 is a deficient number, since it is larger than the sum of its proper divisors (1941178056295).

7173123435545 is a wasteful number, since it uses less digits than its factorization.

7173123435545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993024.

The product of its digits is 5292000, while the sum is 50.

The spelling of 7173123435545 in words is "seven trillion, one hundred seventy-three billion, one hundred twenty-three million, four hundred thirty-five thousand, five hundred forty-five".