291093283849 has 2 divisors, whose sum is σ = 291093283850. Its totient is φ = 291093283848.

The previous prime is 291093283843. The next prime is 291093283919. The reversal of 291093283849 is 948382390192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194181235600 + 96912048249 = 440660^2 + 311307^2 .

It is a cyclic number.

It is not a de Polignac number, because 291093283849 - 2¹³ = 291093275657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 291093283793 and 291093283802.

It is not a weakly prime, because it can be changed into another prime (291093283843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145546641924 + 145546641925.

It is an arithmetic number, because the mean of its divisors is an integer number (145546641925).

Almost surely, 2^291093283849 is an apocalyptic number.

It is an amenable number.

291093283849 is a deficient number, since it is larger than the sum of its proper divisors (1).

291093283849 is an equidigital number, since it uses as much as digits as its factorization.

291093283849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 291093283849 in words is "two hundred ninety-one billion, ninety-three million, two hundred eighty-three thousand, eight hundred forty-nine".