290919919099 has 2 divisors, whose sum is σ = 290919919100. Its totient is φ = 290919919098.

The previous prime is 290919918979. The next prime is 290919919109. The reversal of 290919919099 is 990919919092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290919919099 - 2¹⁹ = 290919394811 is a prime.

It is not a weakly prime, because it can be changed into another prime (290919916099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145459959549 + 145459959550.

It is an arithmetic number, because the mean of its divisors is an integer number (145459959550).

Almost surely, 2^290919919099 is an apocalyptic number.

290919919099 is a deficient number, since it is larger than the sum of its proper divisors (1).

290919919099 is an equidigital number, since it uses as much as digits as its factorization.

290919919099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9565938, while the sum is 67.

The spelling of 290919919099 in words is "two hundred ninety billion, nine hundred nineteen million, nine hundred nineteen thousand, ninety-nine".