20499849067 has 2 divisors, whose sum is σ = 20499849068. Its totient is φ = 20499849066.

The previous prime is 20499849049. The next prime is 20499849107. The reversal of 20499849067 is 76094899402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20499849067 - 2¹⁹ = 20499324779 is a prime.

It is not a weakly prime, because it can be changed into another prime (20499849017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10249924533 + 10249924534.

It is an arithmetic number, because the mean of its divisors is an integer number (10249924534).

Almost surely, 2^20499849067 is an apocalyptic number.

20499849067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20499849067 is an equidigital number, since it uses as much as digits as its factorization.

20499849067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 20499849067 in words is "twenty billion, four hundred ninety-nine million, eight hundred forty-nine thousand, sixty-seven".