2012678807197 has 2 divisors, whose sum is σ = 2012678807198. Its totient is φ = 2012678807196.

The previous prime is 2012678807131. The next prime is 2012678807207. The reversal of 2012678807197 is 7917088762102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1966335912121 + 46342895076 = 1402261^2 + 215274^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012678807197 - 2¹¹ = 2012678805149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012678801197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006339403598 + 1006339403599.

It is an arithmetic number, because the mean of its divisors is an integer number (1006339403599).

Almost surely, 2^{2012678807197} is an apocalyptic number.

It is an amenable number.

2012678807197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012678807197 is an equidigital number, since it uses as much as digits as its factorization.

2012678807197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4741632, while the sum is 58.

The spelling of 2012678807197 in words is "two trillion, twelve billion, six hundred seventy-eight million, eight hundred seven thousand, one hundred ninety-seven".