4012685893897 has 2 divisors, whose sum is σ = 4012685893898. Its totient is φ = 4012685893896.

The previous prime is 4012685893889. The next prime is 4012685893913. The reversal of 4012685893897 is 7983985862104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3491501525136 + 521184368761 = 1868556^2 + 721931^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012685893897 - 2³ = 4012685893889 is a prime.

It is a super-2 number, since 2×4012685893897² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4012685897897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006342946948 + 2006342946949.

It is an arithmetic number, because the mean of its divisors is an integer number (2006342946949).

It is a 1-persistent number, because it is pandigital, but 2⋅4012685893897 = 8025371787794 is not.

Almost surely, 2^{4012685893897} is an apocalyptic number.

It is an amenable number.

4012685893897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012685893897 is an equidigital number, since it uses as much as digits as its factorization.

4012685893897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209018880, while the sum is 70.

The spelling of 4012685893897 in words is "four trillion, twelve billion, six hundred eighty-five million, eight hundred ninety-three thousand, eight hundred ninety-seven".