37728892813 has 2 divisors, whose sum is σ = 37728892814. Its totient is φ = 37728892812.

The previous prime is 37728892793. The next prime is 37728892841. The reversal of 37728892813 is 31829882773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28359233604 + 9369659209 = 168402^2 + 96797^2 .

It is a cyclic number.

It is not a de Polignac number, because 37728892813 - 2¹³ = 37728884621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37728892853) 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, 18864446406 + 18864446407.

It is an arithmetic number, because the mean of its divisors is an integer number (18864446407).

Almost surely, 2^37728892813 is an apocalyptic number.

It is an amenable number.

37728892813 is a deficient number, since it is larger than the sum of its proper divisors (1).

37728892813 is an equidigital number, since it uses as much as digits as its factorization.

37728892813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 58.

The spelling of 37728892813 in words is "thirty-seven billion, seven hundred twenty-eight million, eight hundred ninety-two thousand, eight hundred thirteen".