423448791822 has 120 divisors (see below), whose sum is σ = 1106027969904. Its totient is φ = 120735836928.

The previous prime is 423448791793. The next prime is 423448791847. The reversal of 423448791822 is 228197844324.

423448791822 is a `hidden beast` number, since 42 + 34 + 487 + 91 + 8 + 2 + 2 = 666.

It is a super-2 number, since 2×423448791822² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3811038 + ... + 3920574.

Almost surely, 2^423448791822 is an apocalyptic number.

423448791822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 423448791822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553013984952).

423448791822 is an abundant number, since it is smaller than the sum of its proper divisors (682579178082).

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

423448791822 is a wasteful number, since it uses less digits than its factorization.

423448791822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110052 (or 110036 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The spelling of 423448791822 in words is "four hundred twenty-three billion, four hundred forty-eight million, seven hundred ninety-one thousand, eight hundred twenty-two".