38820565491011 has 2 divisors, whose sum is σ = 38820565491012. Its totient is φ = 38820565491010.

The previous prime is 38820565491007. The next prime is 38820565491079. The reversal of 38820565491011 is 11019456502883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38820565491011 - 2² = 38820565491007 is a prime.

It is not a weakly prime, because it can be changed into another prime (38820565491311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19410282745505 + 19410282745506.

It is an arithmetic number, because the mean of its divisors is an integer number (19410282745506).

Almost surely, 2^{38820565491011} is an apocalyptic number.

38820565491011 is a deficient number, since it is larger than the sum of its proper divisors (1).

38820565491011 is an equidigital number, since it uses as much as digits as its factorization.

38820565491011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 38820565491011 in words is "thirty-eight trillion, eight hundred twenty billion, five hundred sixty-five million, four hundred ninety-one thousand, eleven".