797090040101 has 2 divisors, whose sum is σ = 797090040102. Its totient is φ = 797090040100.

The previous prime is 797090040083. The next prime is 797090040113. The reversal of 797090040101 is 101040090797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778716237601 + 18373802500 = 882449^2 + 135550^2 .

It is an emirp because it is prime and its reverse (101040090797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 797090040101 - 2¹⁰ = 797090039077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797090040121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398545020050 + 398545020051.

It is an arithmetic number, because the mean of its divisors is an integer number (398545020051).

Almost surely, 2^797090040101 is an apocalyptic number.

It is an amenable number.

797090040101 is a deficient number, since it is larger than the sum of its proper divisors (1).

797090040101 is an equidigital number, since it uses as much as digits as its factorization.

797090040101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The spelling of 797090040101 in words is "seven hundred ninety-seven billion, ninety million, forty thousand, one hundred one".