36773817791 has 2 divisors, whose sum is σ = 36773817792. Its totient is φ = 36773817790.

The previous prime is 36773817781. The next prime is 36773817811. The reversal of 36773817791 is 19771837763.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36773817791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36773817791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36773817761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18386908895 + 18386908896.

It is an arithmetic number, because the mean of its divisors is an integer number (18386908896).

Almost surely, 2^36773817791 is an apocalyptic number.

36773817791 is a deficient number, since it is larger than the sum of its proper divisors (1).

36773817791 is an equidigital number, since it uses as much as digits as its factorization.

36773817791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9335088, while the sum is 59.

The spelling of 36773817791 in words is "thirty-six billion, seven hundred seventy-three million, eight hundred seventeen thousand, seven hundred ninety-one".