19469040540547 has 8 divisors (see below), whose sum is σ = 20973342753216. Its totient is φ = 17965693143552.

The previous prime is 19469040540497. The next prime is 19469040540559. The reversal of 19469040540547 is 74504504096491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19469040540547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19469040540491 and 19469040540500.

It is not an unprimeable number, because it can be changed into a prime (19469040540577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238661563 + ... + 238743124.

It is an arithmetic number, because the mean of its divisors is an integer number (2621667844152).

Almost surely, 2^{19469040540547} is an apocalyptic number.

19469040540547 is a deficient number, since it is larger than the sum of its proper divisors (1504302212669).

19469040540547 is a wasteful number, since it uses less digits than its factorization.

19469040540547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477407837.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 19469040540547 in words is "nineteen trillion, four hundred sixty-nine billion, forty million, five hundred forty thousand, five hundred forty-seven".