229478478261 has 8 divisors (see below), whose sum is σ = 306853067424. Its totient is φ = 152544770640.

The previous prime is 229478478239. The next prime is 229478478301. The reversal of 229478478261 is 162874874922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 229478478261 - 2⁷ = 229478478133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229478478195 and 229478478204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229478478161) 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, 110219170 + ... + 110221251.

It is an arithmetic number, because the mean of its divisors is an integer number (38356633428).

Almost surely, 2^229478478261 is an apocalyptic number.

It is an amenable number.

229478478261 is a deficient number, since it is larger than the sum of its proper divisors (77374589163).

229478478261 is a wasteful number, since it uses less digits than its factorization.

229478478261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220440771.

The product of its digits is 21676032, while the sum is 60.

The spelling of 229478478261 in words is "two hundred twenty-nine billion, four hundred seventy-eight million, four hundred seventy-eight thousand, two hundred sixty-one".