223878573873 has 6 divisors (see below), whose sum is σ = 323380162274. Its totient is φ = 149252382576.

The previous prime is 223878573869. The next prime is 223878573881. The reversal of 223878573873 is 378375878322.

223878573873 is a `hidden beast` number, since 22 + 38 + 7 + 8 + 573 + 8 + 7 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 205940793249 + 17937780624 = 453807^2 + 133932^2 .

It is not a de Polignac number, because 223878573873 - 2² = 223878573869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223878573873.

It is not an unprimeable number, because it can be changed into a prime (223878573073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12437698540 + ... + 12437698557.

Almost surely, 2^223878573873 is an apocalyptic number.

It is an amenable number.

223878573873 is a deficient number, since it is larger than the sum of its proper divisors (99501588401).

223878573873 is a wasteful number, since it uses less digits than its factorization.

223878573873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24875397103 (or 24875397100 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 223878573873 in words is "two hundred twenty-three billion, eight hundred seventy-eight million, five hundred seventy-three thousand, eight hundred seventy-three".