37783394849 has 2 divisors, whose sum is σ = 37783394850. Its totient is φ = 37783394848.

The previous prime is 37783394839. The next prime is 37783394867. The reversal of 37783394849 is 94849338773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37148707600 + 634687249 = 192740^2 + 25193^2 .

It is a cyclic number.

It is not a de Polignac number, because 37783394849 - 2⁴ = 37783394833 is a prime.

It is not a weakly prime, because it can be changed into another prime (37783394839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18891697424 + 18891697425.

It is an arithmetic number, because the mean of its divisors is an integer number (18891697425).

Almost surely, 2^37783394849 is an apocalyptic number.

It is an amenable number.

37783394849 is a deficient number, since it is larger than the sum of its proper divisors (1).

37783394849 is an equidigital number, since it uses as much as digits as its factorization.

37783394849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 65.

The spelling of 37783394849 in words is "thirty-seven billion, seven hundred eighty-three million, three hundred ninety-four thousand, eight hundred forty-nine".