12478955461 has 16 divisors (see below), whose sum is σ = 14808355200. Its totient is φ = 10288974528.

The previous prime is 12478955449. The next prime is 12478955497. The reversal of 12478955461 is 16455987421.

It is not a de Polignac number, because 12478955461 - 2⁵ = 12478955429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12478955399 and 12478955408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478955431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59655 + ... + 168868.

It is an arithmetic number, because the mean of its divisors is an integer number (925522200).

Almost surely, 2^12478955461 is an apocalyptic number.

It is an amenable number.

12478955461 is a deficient number, since it is larger than the sum of its proper divisors (2329399739).

12478955461 is a wasteful number, since it uses less digits than its factorization.

12478955461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228828.

The product of its digits is 2419200, while the sum is 52.

The spelling of 12478955461 in words is "twelve billion, four hundred seventy-eight million, nine hundred fifty-five thousand, four hundred sixty-one".