823381106398 has 16 divisors (see below), whose sum is σ = 1244221881840. Its totient is φ = 408641740416.

The previous prime is 823381106333. The next prime is 823381106417. The reversal of 823381106398 is 893601183328.

It is a super-4 number, since 4×823381106398⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002886 + ... + 1628662.

It is an arithmetic number, because the mean of its divisors is an integer number (77763867615).

Almost surely, 2^823381106398 is an apocalyptic number.

823381106398 is a deficient number, since it is larger than the sum of its proper divisors (420840775442).

823381106398 is a wasteful number, since it uses less digits than its factorization.

823381106398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630651.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 823381106398 in words is "eight hundred twenty-three billion, three hundred eighty-one million, one hundred six thousand, three hundred ninety-eight".