19490226088579 has 2 divisors, whose sum is σ = 19490226088580. Its totient is φ = 19490226088578.

The previous prime is 19490226088559. The next prime is 19490226088603. The reversal of 19490226088579 is 97588062209491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19490226088579 is a prime.

It is not a weakly prime, because it can be changed into another prime (19490226088559) 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, 9745113044289 + 9745113044290.

It is an arithmetic number, because the mean of its divisors is an integer number (9745113044290).

Almost surely, 2^{19490226088579} is an apocalyptic number.

19490226088579 is a deficient number, since it is larger than the sum of its proper divisors (1).

19490226088579 is an equidigital number, since it uses as much as digits as its factorization.

19490226088579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156764160, while the sum is 70.

The spelling of 19490226088579 in words is "nineteen trillion, four hundred ninety billion, two hundred twenty-six million, eighty-eight thousand, five hundred seventy-nine".