993841343826 has 16 divisors (see below), whose sum is σ = 2015678219328. Its totient is φ = 326614526000.

The previous prime is 993841343821. The next prime is 993841343827. The reversal of 993841343826 is 628343148399.

It is a self number, because there is not a number n which added to its sum of digits gives 993841343826.

It is not an unprimeable number, because it can be changed into a prime (993841343821) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1166480025 + ... + 1166480876.

It is an arithmetic number, because the mean of its divisors is an integer number (125979888708).

Almost surely, 2^993841343826 is an apocalyptic number.

993841343826 is an abundant number, since it is smaller than the sum of its proper divisors (1021836875502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993841343826 is a wasteful number, since it uses less digits than its factorization.

993841343826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332960977.

The product of its digits is 26873856, while the sum is 60.

The spelling of 993841343826 in words is "nine hundred ninety-three billion, eight hundred forty-one million, three hundred forty-three thousand, eight hundred twenty-six".