12858066931 has 2 divisors, whose sum is σ = 12858066932. Its totient is φ = 12858066930.

The previous prime is 12858066929. The next prime is 12858066937. The reversal of 12858066931 is 13966085821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12858066931 - 2¹ = 12858066929 is a prime.

It is a super-2 number, since 2×12858066931² (a number of 21 digits) contains 22 as substring.

Together with 12858066929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12858066937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6429033465 + 6429033466.

It is an arithmetic number, because the mean of its divisors is an integer number (6429033466).

Almost surely, 2^12858066931 is an apocalyptic number.

12858066931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12858066931 is an equidigital number, since it uses as much as digits as its factorization.

12858066931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 12858066931 in words is "twelve billion, eight hundred fifty-eight million, sixty-six thousand, nine hundred thirty-one".