19672847049 has 8 divisors (see below), whose sum is σ = 27773431200. Its totient is φ = 12343747136.

The previous prime is 19672847027. The next prime is 19672847059. The reversal of 19672847049 is 94074827691.

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 not a de Polignac number, because 19672847049 - 2¹⁷ = 19672715977 is a prime.

It is a super-2 number, since 2×19672847049² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19672847049.

It is not an unprimeable number, because it can be changed into a prime (19672847059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192870999 + ... + 192871100.

It is an arithmetic number, because the mean of its divisors is an integer number (3471678900).

Almost surely, 2^19672847049 is an apocalyptic number.

It is an amenable number.

19672847049 is a deficient number, since it is larger than the sum of its proper divisors (8100584151).

19672847049 is a wasteful number, since it uses less digits than its factorization.

19672847049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385742119.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 19672847049 in words is "nineteen billion, six hundred seventy-two million, eight hundred forty-seven thousand, forty-nine".