19475889001 has 2 divisors, whose sum is σ = 19475889002. Its totient is φ = 19475889000.

The previous prime is 19475888941. The next prime is 19475889031. The reversal of 19475889001 is 10098857491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17312243776 + 2163645225 = 131576^2 + 46515^2 .

It is an emirp because it is prime and its reverse (10098857491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19475889001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19475889001.

It is not a weakly prime, because it can be changed into another prime (19475889031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9737944500 + 9737944501.

It is an arithmetic number, because the mean of its divisors is an integer number (9737944501).

Almost surely, 2^19475889001 is an apocalyptic number.

It is an amenable number.

19475889001 is a deficient number, since it is larger than the sum of its proper divisors (1).

19475889001 is an equidigital number, since it uses as much as digits as its factorization.

19475889001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 19475889001 in words is "nineteen billion, four hundred seventy-five million, eight hundred eighty-nine thousand, one".