19479800849708 has 6 divisors (see below), whose sum is σ = 34089651486996. Its totient is φ = 9739900424852.

The previous prime is 19479800849647. The next prime is 19479800849731. The reversal of 19479800849708 is 80794800897491.

It is a happy number.

It is a super-2 number, since 2×19479800849708² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2434975106210 + ... + 2434975106217.

It is an arithmetic number, because the mean of its divisors is an integer number (5681608581166).

Almost surely, 2^{19479800849708} is an apocalyptic number.

It is an amenable number.

19479800849708 is a deficient number, since it is larger than the sum of its proper divisors (14609850637288).

19479800849708 is a wasteful number, since it uses less digits than its factorization.

19479800849708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4869950212431 (or 4869950212429 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 74.

The spelling of 19479800849708 in words is "nineteen trillion, four hundred seventy-nine billion, eight hundred million, eight hundred forty-nine thousand, seven hundred eight".