19484728332869 has 4 divisors (see below), whose sum is σ = 19486415187840. Its totient is φ = 19483041477900.

The previous prime is 19484728332847. The next prime is 19484728332917. The reversal of 19484728332869 is 96823382748491.

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 19484728332869 - 2⁸ = 19484728332613 is a prime.

It is a super-2 number, since 2×19484728332869² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19484728332796 and 19484728332805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19484728332469) 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, 843410159 + ... + 843433260.

It is an arithmetic number, because the mean of its divisors is an integer number (4871603796960).

Almost surely, 2^{19484728332869} is an apocalyptic number.

It is an amenable number.

19484728332869 is a deficient number, since it is larger than the sum of its proper divisors (1686854971).

19484728332869 is a wasteful number, since it uses less digits than its factorization.

19484728332869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686854970.

The product of its digits is 1003290624, while the sum is 74.

The spelling of 19484728332869 in words is "nineteen trillion, four hundred eighty-four billion, seven hundred twenty-eight million, three hundred thirty-two thousand, eight hundred sixty-nine".