290794211065961 has 2 divisors, whose sum is σ = 290794211065962. Its totient is φ = 290794211065960.

The previous prime is 290794211065951. The next prime is 290794211065979. The reversal of 290794211065961 is 169560112497092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222936074929936 + 67858136136025 = 14931044^2 + 8237605^2 .

It is a cyclic number.

It is not a de Polignac number, because 290794211065961 - 2¹⁰ = 290794211064937 is a prime.

It is a super-2 number, since 2×290794211065961² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 290794211065894 and 290794211065903.

It is not a weakly prime, because it can be changed into another prime (290794211065901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145397105532980 + 145397105532981.

It is an arithmetic number, because the mean of its divisors is an integer number (145397105532981).

Almost surely, 2^{290794211065961} is an apocalyptic number.

It is an amenable number.

290794211065961 is a deficient number, since it is larger than the sum of its proper divisors (1).

290794211065961 is an equidigital number, since it uses as much as digits as its factorization.

290794211065961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 290794211065961 in words is "two hundred ninety trillion, seven hundred ninety-four billion, two hundred eleven million, sixty-five thousand, nine hundred sixty-one".