19344972601 has 2 divisors, whose sum is σ = 19344972602. Its totient is φ = 19344972600.

The previous prime is 19344972593. The next prime is 19344972611. The reversal of 19344972601 is 10627944391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13282793001 + 6062179600 = 115251^2 + 77860^2 .

It is a cyclic number.

It is not a de Polignac number, because 19344972601 - 2³ = 19344972593 is a prime.

It is not a weakly prime, because it can be changed into another prime (19344972611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9672486300 + 9672486301.

It is an arithmetic number, because the mean of its divisors is an integer number (9672486301).

Almost surely, 2^19344972601 is an apocalyptic number.

It is an amenable number.

19344972601 is a deficient number, since it is larger than the sum of its proper divisors (1).

19344972601 is an equidigital number, since it uses as much as digits as its factorization.

19344972601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 19344972601 in words is "nineteen billion, three hundred forty-four million, nine hundred seventy-two thousand, six hundred one".