12878267693 has 16 divisors (see below), whose sum is σ = 13425223680. Its totient is φ = 12342844800.

The previous prime is 12878267683. The next prime is 12878267707. The reversal of 12878267693 is 39676287821.

It is a happy number.

It is not a de Polignac number, because 12878267693 - 2⁶ = 12878267629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878267683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885188 + ... + 899618.

It is an arithmetic number, because the mean of its divisors is an integer number (839076480).

Almost surely, 2^12878267693 is an apocalyptic number.

It is an amenable number.

12878267693 is a deficient number, since it is larger than the sum of its proper divisors (546955987).

12878267693 is a wasteful number, since it uses less digits than its factorization.

12878267693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14828.

The product of its digits is 12192768, while the sum is 59.

The spelling of 12878267693 in words is "twelve billion, eight hundred seventy-eight million, two hundred sixty-seven thousand, six hundred ninety-three".