202067678861 has 2 divisors, whose sum is σ = 202067678862. Its totient is φ = 202067678860.

The previous prime is 202067678849. The next prime is 202067678887. The reversal of 202067678861 is 168876760202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198219957961 + 3847720900 = 445219^2 + 62030^2 .

It is a cyclic number.

It is not a de Polignac number, because 202067678861 - 2²⁶ = 202000569997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202067678831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101033839430 + 101033839431.

It is an arithmetic number, because the mean of its divisors is an integer number (101033839431).

Almost surely, 2^202067678861 is an apocalyptic number.

It is an amenable number.

202067678861 is a deficient number, since it is larger than the sum of its proper divisors (1).

202067678861 is an equidigital number, since it uses as much as digits as its factorization.

202067678861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 202067678861 in words is "two hundred two billion, sixty-seven million, six hundred seventy-eight thousand, eight hundred sixty-one".