19003364797 has 2 divisors, whose sum is σ = 19003364798. Its totient is φ = 19003364796.

The previous prime is 19003364753. The next prime is 19003364801. The reversal of 19003364797 is 79746330091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17249932921 + 1753431876 = 131339^2 + 41874^2 .

It is a cyclic number.

It is not a de Polignac number, because 19003364797 - 2⁷ = 19003364669 is a prime.

It is a super-2 number, since 2×19003364797² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19003364797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19003364297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9501682398 + 9501682399.

It is an arithmetic number, because the mean of its divisors is an integer number (9501682399).

Almost surely, 2^19003364797 is an apocalyptic number.

It is an amenable number.

19003364797 is a deficient number, since it is larger than the sum of its proper divisors (1).

19003364797 is an equidigital number, since it uses as much as digits as its factorization.

19003364797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 19003364797 in words is "nineteen billion, three million, three hundred sixty-four thousand, seven hundred ninety-seven".