36778067317 has 2 divisors, whose sum is σ = 36778067318. Its totient is φ = 36778067316.

The previous prime is 36778067299. The next prime is 36778067369. The reversal of 36778067317 is 71376087763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35935268356 + 842798961 = 189566^2 + 29031^2 .

It is an emirp because it is prime and its reverse (71376087763) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36778067317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36778007317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18389033658 + 18389033659.

It is an arithmetic number, because the mean of its divisors is an integer number (18389033659).

Almost surely, 2^36778067317 is an apocalyptic number.

It is an amenable number.

36778067317 is a deficient number, since it is larger than the sum of its proper divisors (1).

36778067317 is an equidigital number, since it uses as much as digits as its factorization.

36778067317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 36778067317 in words is "thirty-six billion, seven hundred seventy-eight million, sixty-seven thousand, three hundred seventeen".