19029926659 has 2 divisors, whose sum is σ = 19029926660. Its totient is φ = 19029926658.

The previous prime is 19029926651. The next prime is 19029926681. The reversal of 19029926659 is 95662992091.

It is a weak prime.

It is an emirp because it is prime and its reverse (95662992091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19029926659 - 2³ = 19029926651 is a prime.

It is not a weakly prime, because it can be changed into another prime (19029926651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9514963329 + 9514963330.

It is an arithmetic number, because the mean of its divisors is an integer number (9514963330).

Almost surely, 2^19029926659 is an apocalyptic number.

19029926659 is a deficient number, since it is larger than the sum of its proper divisors (1).

19029926659 is an equidigital number, since it uses as much as digits as its factorization.

19029926659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4723920, while the sum is 58.

Subtracting from 19029926659 its sum of digits (58), we obtain a square (19029926601 = 137949²).

The spelling of 19029926659 in words is "nineteen billion, twenty-nine million, nine hundred twenty-six thousand, six hundred fifty-nine".