17950134511 has 2 divisors, whose sum is σ = 17950134512. Its totient is φ = 17950134510.

The previous prime is 17950134509. The next prime is 17950134533. The reversal of 17950134511 is 11543105971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17950134511 - 2¹ = 17950134509 is a prime.

Together with 17950134509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17950134551) 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, 8975067255 + 8975067256.

It is an arithmetic number, because the mean of its divisors is an integer number (8975067256).

Almost surely, 2^17950134511 is an apocalyptic number.

17950134511 is a deficient number, since it is larger than the sum of its proper divisors (1).

17950134511 is an equidigital number, since it uses as much as digits as its factorization.

17950134511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 37.

The spelling of 17950134511 in words is "seventeen billion, nine hundred fifty million, one hundred thirty-four thousand, five hundred eleven".