223873856725461 has 16 divisors (see below), whose sum is σ = 298548445413504. Its totient is φ = 149224255009344.

The previous prime is 223873856725457. The next prime is 223873856725487. The reversal of 223873856725461 is 164527658378322.

It is not a de Polignac number, because 223873856725461 - 2² = 223873856725457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223873856725411) 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, 451441335 + ... + 451936971.

It is an arithmetic number, because the mean of its divisors is an integer number (18659277838344).

Almost surely, 2^{223873856725461} is an apocalyptic number.

It is an amenable number.

223873856725461 is a deficient number, since it is larger than the sum of its proper divisors (74674588688043).

223873856725461 is a wasteful number, since it uses less digits than its factorization.

223873856725461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520540.

The product of its digits is 812851200, while the sum is 69.

The spelling of 223873856725461 in words is "two hundred twenty-three trillion, eight hundred seventy-three billion, eight hundred fifty-six million, seven hundred twenty-five thousand, four hundred sixty-one".