12857678207 has 4 divisors (see below), whose sum is σ = 14026558056. Its totient is φ = 11688798360.

The previous prime is 12857678179. The next prime is 12857678227. The reversal of 12857678207 is 70287675821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12857678207 - 2⁸ = 12857677951 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 (12857678227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584439908 + ... + 584439929.

It is an arithmetic number, because the mean of its divisors is an integer number (3506639514).

Almost surely, 2^12857678207 is an apocalyptic number.

12857678207 is a deficient number, since it is larger than the sum of its proper divisors (1168879849).

12857678207 is a wasteful number, since it uses less digits than its factorization.

12857678207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168879848.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The spelling of 12857678207 in words is "twelve billion, eight hundred fifty-seven million, six hundred seventy-eight thousand, two hundred seven".