19847711468 has 12 divisors (see below), whose sum is σ = 37405302480. Its totient is φ = 9160482192.

The previous prime is 19847711461. The next prime is 19847711479. The reversal of 19847711468 is 86411774891.

It is not an unprimeable number, because it can be changed into a prime (19847711461) 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, 190843328 + ... + 190843431.

It is an arithmetic number, because the mean of its divisors is an integer number (3117108540).

Almost surely, 2^19847711468 is an apocalyptic number.

It is an amenable number.

19847711468 is a deficient number, since it is larger than the sum of its proper divisors (17557591012).

19847711468 is a wasteful number, since it uses less digits than its factorization.

19847711468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381686776 (or 381686774 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 56.

The spelling of 19847711468 in words is "nineteen billion, eight hundred forty-seven million, seven hundred eleven thousand, four hundred sixty-eight".