123827198404 has 72 divisors (see below), whose sum is σ = 271184215680. Its totient is φ = 48436008192.

The previous prime is 123827198401. The next prime is 123827198419. The reversal of 123827198404 is 404891728321.

It is not an unprimeable number, because it can be changed into a prime (123827198401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274137 + ... + 568159.

It is an arithmetic number, because the mean of its divisors is an integer number (3766447440).

Almost surely, 2^123827198404 is an apocalyptic number.

123827198404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123827198404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135592107840).

123827198404 is an abundant number, since it is smaller than the sum of its proper divisors (147357017276).

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

123827198404 is a wasteful number, since it uses less digits than its factorization.

123827198404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294149 (or 294134 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 123827198404 in words is "one hundred twenty-three billion, eight hundred twenty-seven million, one hundred ninety-eight thousand, four hundred four".