38620804598681 has 2 divisors, whose sum is σ = 38620804598682. Its totient is φ = 38620804598680.

The previous prime is 38620804598669. The next prime is 38620804598687. The reversal of 38620804598681 is 18689540802683.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35087378371600 + 3533426227081 = 5923460^2 + 1879741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38620804598681 is a prime.

It is a super-2 number, since 2×38620804598681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38620804598687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19310402299340 + 19310402299341.

It is an arithmetic number, because the mean of its divisors is an integer number (19310402299341).

Almost surely, 2^{38620804598681} is an apocalyptic number.

It is an amenable number.

38620804598681 is a deficient number, since it is larger than the sum of its proper divisors (1).

38620804598681 is an equidigital number, since it uses as much as digits as its factorization.

38620804598681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 159252480, while the sum is 68.

The spelling of 38620804598681 in words is "thirty-eight trillion, six hundred twenty billion, eight hundred four million, five hundred ninety-eight thousand, six hundred eighty-one".