12878791254 has 48 divisors (see below), whose sum is σ = 32327217312. Its totient is φ = 3629245824.

The previous prime is 12878791241. The next prime is 12878791259. The reversal of 12878791254 is 45219787821.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12878791254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878791259) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 690889 + ... + 709284.

It is an arithmetic number, because the mean of its divisors is an integer number (673483694).

Almost surely, 2^12878791254 is an apocalyptic number.

12878791254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12878791254 is an abundant number, since it is smaller than the sum of its proper divisors (19448426058).

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

12878791254 is a wasteful number, since it uses less digits than its factorization.

12878791254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400261 (or 1400258 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The spelling of 12878791254 in words is "twelve billion, eight hundred seventy-eight million, seven hundred ninety-one thousand, two hundred fifty-four".