38620804598809 has 2 divisors, whose sum is σ = 38620804598810. Its totient is φ = 38620804598808.

The previous prime is 38620804598777. The next prime is 38620804598891. The reversal of 38620804598809 is 90889540802683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38604413430025 + 16391168784 = 6213245^2 + 128028^2 .

It is a cyclic number.

It is not a de Polignac number, because 38620804598809 - 2⁵ = 38620804598777 is a prime.

It is not a weakly prime, because it can be changed into another prime (38620804598209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19310402299404 + 19310402299405.

It is an arithmetic number, because the mean of its divisors is an integer number (19310402299405).

Almost surely, 2^{38620804598809} is an apocalyptic number.

It is an amenable number.

38620804598809 is a deficient number, since it is larger than the sum of its proper divisors (1).

38620804598809 is an equidigital number, since it uses as much as digits as its factorization.

38620804598809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238878720, while the sum is 70.

The spelling of 38620804598809 in words is "thirty-eight trillion, six hundred twenty billion, eight hundred four million, five hundred ninety-eight thousand, eight hundred nine".