223478122478 has 16 divisors (see below), whose sum is σ = 364577413536. Its totient is φ = 102122522400.

The previous prime is 223478122471. The next prime is 223478122541. The reversal of 223478122478 is 874221874322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223478122471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42548426 + ... + 42553677.

It is an arithmetic number, because the mean of its divisors is an integer number (22786088346).

Almost surely, 2^223478122478 is an apocalyptic number.

223478122478 is a deficient number, since it is larger than the sum of its proper divisors (141099291058).

223478122478 is a wasteful number, since it uses less digits than its factorization.

223478122478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85102219.

The product of its digits is 2408448, while the sum is 50.

The spelling of 223478122478 in words is "two hundred twenty-three billion, four hundred seventy-eight million, one hundred twenty-two thousand, four hundred seventy-eight".