223908504913 has 16 divisors (see below), whose sum is σ = 226812897360. Its totient is φ = 221025024000.

The previous prime is 223908504893. The next prime is 223908504943. The reversal of 223908504913 is 319405809322.

It can be written as a sum of positive squares in 8 ways, for example, as 53180049664 + 170728455249 = 230608^2 + 413193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223908504913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223908504943) 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, 27635563 + ... + 27643663.

It is an arithmetic number, because the mean of its divisors is an integer number (14175806085).

Almost surely, 2^223908504913 is an apocalyptic number.

It is an amenable number.

223908504913 is a deficient number, since it is larger than the sum of its proper divisors (2904392447).

223908504913 is a wasteful number, since it uses less digits than its factorization.

223908504913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 223908504913 in words is "two hundred twenty-three billion, nine hundred eight million, five hundred four thousand, nine hundred thirteen".