19799976612398 has 8 divisors (see below), whose sum is σ = 29709648646392. Its totient is φ = 9896760396936.

The previous prime is 19799976612373. The next prime is 19799976612419. The reversal of 19799976612398 is 89321667999791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 1613946965 + ... + 1613959232.

It is an arithmetic number, because the mean of its divisors is an integer number (3713706080799).

Almost surely, 2^{19799976612398} is an apocalyptic number.

19799976612398 is a deficient number, since it is larger than the sum of its proper divisors (9909672033994).

19799976612398 is a wasteful number, since it uses less digits than its factorization.

19799976612398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227909266.

The product of its digits is 4999796928, while the sum is 86.

The spelling of 19799976612398 in words is "nineteen trillion, seven hundred ninety-nine billion, nine hundred seventy-six million, six hundred twelve thousand, three hundred ninety-eight".