19497535479368 has 16 divisors (see below), whose sum is σ = 36559044092160. Its totient is φ = 9748457054800.

The previous prime is 19497535479353. The next prime is 19497535479469. The reversal of 19497535479368 is 86397453579491.

It is a junction number, because it is equal to n+sod(n) for n = 19497535479292 and 19497535479301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38568788 + ... + 39071043.

It is an arithmetic number, because the mean of its divisors is an integer number (2284940255760).

Almost surely, 2^{19497535479368} is an apocalyptic number.

It is an amenable number.

19497535479368 is a deficient number, since it is larger than the sum of its proper divisors (17061508612792).

19497535479368 is a wasteful number, since it uses less digits than its factorization.

19497535479368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77671228 (or 77671224 counting only the distinct ones).

The product of its digits is 6172588800, while the sum is 80.

The spelling of 19497535479368 in words is "nineteen trillion, four hundred ninety-seven billion, five hundred thirty-five million, four hundred seventy-nine thousand, three hundred sixty-eight".