19468965601 has 4 divisors (see below), whose sum is σ = 19469279232. Its totient is φ = 19468651972.

The previous prime is 19468965533. The next prime is 19468965613. The reversal of 19468965601 is 10656986491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19468965601 - 2¹⁹ = 19468441313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19468965001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28945 + ... + 199438.

It is an arithmetic number, because the mean of its divisors is an integer number (4867319808).

Almost surely, 2^19468965601 is an apocalyptic number.

It is an amenable number.

19468965601 is a deficient number, since it is larger than the sum of its proper divisors (313631).

19468965601 is an equidigital number, since it uses as much as digits as its factorization.

19468965601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313630.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 19468965601 in words is "nineteen billion, four hundred sixty-eight million, nine hundred sixty-five thousand, six hundred one".