9819979413398 has 32 divisors (see below), whose sum is σ = 18364782647808. Its totient is φ = 3825935625600.

The previous prime is 9819979413337. The next prime is 9819979413437. The reversal of 9819979413398 is 8933149799189.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36071486 + ... + 36342702.

It is an arithmetic number, because the mean of its divisors is an integer number (573899457744).

Almost surely, 2^{9819979413398} is an apocalyptic number.

9819979413398 is a deficient number, since it is larger than the sum of its proper divisors (8544803234410).

9819979413398 is a wasteful number, since it uses less digits than its factorization.

9819979413398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506348.

The product of its digits is 952342272, while the sum is 80.

It can be divided in two parts, 98199 and 79413398, that added together give a palindrome (79511597).

The spelling of 9819979413398 in words is "nine trillion, eight hundred nineteen billion, nine hundred seventy-nine million, four hundred thirteen thousand, three hundred ninety-eight".