19470753409 has 2 divisors, whose sum is σ = 19470753410. Its totient is φ = 19470753408.

The previous prime is 19470753391. The next prime is 19470753493. The reversal of 19470753409 is 90435707491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16920806400 + 2549947009 = 130080^2 + 50497^2 .

It is a cyclic number.

It is not a de Polignac number, because 19470753409 - 2⁹ = 19470752897 is a prime.

It is a super-2 number, since 2×19470753409² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19470753209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9735376704 + 9735376705.

It is an arithmetic number, because the mean of its divisors is an integer number (9735376705).

Almost surely, 2^19470753409 is an apocalyptic number.

It is an amenable number.

19470753409 is a deficient number, since it is larger than the sum of its proper divisors (1).

19470753409 is an equidigital number, since it uses as much as digits as its factorization.

19470753409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 19470753409 in words is "nineteen billion, four hundred seventy million, seven hundred fifty-three thousand, four hundred nine".