290049885991 has 2 divisors, whose sum is σ = 290049885992. Its totient is φ = 290049885990.

The previous prime is 290049885967. The next prime is 290049885997. The reversal of 290049885991 is 199588940092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290049885991 - 2⁹ = 290049885479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290049885997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145024942995 + 145024942996.

It is an arithmetic number, because the mean of its divisors is an integer number (145024942996).

Almost surely, 2^290049885991 is an apocalyptic number.

290049885991 is a deficient number, since it is larger than the sum of its proper divisors (1).

290049885991 is an equidigital number, since it uses as much as digits as its factorization.

290049885991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16796160, while the sum is 64.

The spelling of 290049885991 in words is "two hundred ninety billion, forty-nine million, eight hundred eighty-five thousand, nine hundred ninety-one".