12878479662 has 16 divisors (see below), whose sum is σ = 25758106752. Its totient is φ = 4292635320.

The previous prime is 12878479633. The next prime is 12878479697. The reversal of 12878479662 is 26697487821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12878479596 and 12878479605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186237 + ... + 245847.

It is an arithmetic number, because the mean of its divisors is an integer number (1609881672).

Almost surely, 2^12878479662 is an apocalyptic number.

12878479662 is an abundant number, since it is smaller than the sum of its proper divisors (12879627090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12878479662 is a wasteful number, since it uses less digits than its factorization.

12878479662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95623.

The product of its digits is 16257024, while the sum is 60.

The spelling of 12878479662 in words is "twelve billion, eight hundred seventy-eight million, four hundred seventy-nine thousand, six hundred sixty-two".