2173934255963 has 16 divisors (see below), whose sum is σ = 2218885564896. Its totient is φ = 2129132079360.

The previous prime is 2173934255959. The next prime is 2173934256007. The reversal of 2173934255963 is 3695524393712.

It is a cyclic number.

It is not a de Polignac number, because 2173934255963 - 2² = 2173934255959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173934255063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70665581 + ... + 70696337.

It is an arithmetic number, because the mean of its divisors is an integer number (138680347806).

Almost surely, 2^{2173934255963} is an apocalyptic number.

2173934255963 is a deficient number, since it is larger than the sum of its proper divisors (44951308933).

2173934255963 is a wasteful number, since it uses less digits than its factorization.

2173934255963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33134.

The product of its digits is 36741600, while the sum is 59.

The spelling of 2173934255963 in words is "two trillion, one hundred seventy-three billion, nine hundred thirty-four million, two hundred fifty-five thousand, nine hundred sixty-three".