30490784491 has 2 divisors, whose sum is σ = 30490784492. Its totient is φ = 30490784490.

The previous prime is 30490784477. The next prime is 30490784539. The reversal of 30490784491 is 19448709403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30490784491 is a prime.

It is a super-2 number, since 2×30490784491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30490784461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15245392245 + 15245392246.

It is an arithmetic number, because the mean of its divisors is an integer number (15245392246).

Almost surely, 2^30490784491 is an apocalyptic number.

30490784491 is a deficient number, since it is larger than the sum of its proper divisors (1).

30490784491 is an equidigital number, since it uses as much as digits as its factorization.

30490784491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 30490784491 in words is "thirty billion, four hundred ninety million, seven hundred eighty-four thousand, four hundred ninety-one".