225578134479 has 32 divisors (see below), whose sum is σ = 309463064064. Its totient is φ = 146072747520.

The previous prime is 225578134477. The next prime is 225578134487. The reversal of 225578134479 is 974431875522.

It is not a de Polignac number, because 225578134479 - 2¹ = 225578134477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225578134477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39004222 + ... + 39010004.

It is an arithmetic number, because the mean of its divisors is an integer number (9670720752).

Almost surely, 2^225578134479 is an apocalyptic number.

225578134479 is a deficient number, since it is larger than the sum of its proper divisors (83884929585).

225578134479 is a wasteful number, since it uses less digits than its factorization.

225578134479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167.

The product of its digits is 16934400, while the sum is 57.

The spelling of 225578134479 in words is "two hundred twenty-five billion, five hundred seventy-eight million, one hundred thirty-four thousand, four hundred seventy-nine".