19496809693453 has 4 divisors (see below), whose sum is σ = 19496833198048. Its totient is φ = 19496786188860.

The previous prime is 19496809693447. The next prime is 19496809693489. The reversal of 19496809693453 is 35439690869491.

It is a happy number.

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 19496809693453 - 2³⁷ = 19359370739981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19496809693453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19496809699453) 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, 10460751 + ... + 12182812.

It is an arithmetic number, because the mean of its divisors is an integer number (4874208299512).

Almost surely, 2^{19496809693453} is an apocalyptic number.

It is an amenable number.

19496809693453 is a deficient number, since it is larger than the sum of its proper divisors (23504595).

19496809693453 is an equidigital number, since it uses as much as digits as its factorization.

19496809693453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23504594.

The product of its (nonzero) digits is 1360488960, while the sum is 76.

The spelling of 19496809693453 in words is "nineteen trillion, four hundred ninety-six billion, eight hundred nine million, six hundred ninety-three thousand, four hundred fifty-three".