19369403941 has 2 divisors, whose sum is σ = 19369403942. Its totient is φ = 19369403940.

The previous prime is 19369403929. The next prime is 19369403959. The reversal of 19369403941 is 14930496391.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11918088900 + 7451315041 = 109170^2 + 86321^2 .

It is a cyclic number.

It is not a de Polignac number, because 19369403941 - 2¹⁹ = 19368879653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19369403041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9684701970 + 9684701971.

It is an arithmetic number, because the mean of its divisors is an integer number (9684701971).

Almost surely, 2^19369403941 is an apocalyptic number.

It is an amenable number.

19369403941 is a deficient number, since it is larger than the sum of its proper divisors (1).

19369403941 is an equidigital number, since it uses as much as digits as its factorization.

19369403941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 19369403941 in words is "nineteen billion, three hundred sixty-nine million, four hundred three thousand, nine hundred forty-one".