4021423132194 has 96 divisors (see below), whose sum is σ = 9585369480960. Its totient is φ = 1210730374656.

The previous prime is 4021423132171. The next prime is 4021423132219. The reversal of 4021423132194 is 4912313241204.

4021423132194 is a `hidden beast` number, since 4 + 0 + 2 + 1 + 423 + 13 + 219 + 4 = 666.

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 47 ways as a sum of consecutive naturals, for example, 45894877 + ... + 45982415.

It is an arithmetic number, because the mean of its divisors is an integer number (99847598760).

Almost surely, 2^{4021423132194} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021423132194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4792684740480).

4021423132194 is an abundant number, since it is smaller than the sum of its proper divisors (5563946348766).

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

4021423132194 is a wasteful number, since it uses less digits than its factorization.

4021423132194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91784 (or 91781 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 4021423132194 its reverse (4912313241204), we get a palindrome (8933736373398).

The spelling of 4021423132194 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred thirty-two thousand, one hundred ninety-four".