423131922738 has 210 divisors, whose sum is σ = 1113622728141. Its totient is φ = 120083460336.

The previous prime is 423131922727. The next prime is 423131922761. The reversal of 423131922738 is 837229131324.

423131922738 is a `hidden beast` number, since 423 + 1 + 3 + 192 + 2 + 7 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 347648206689 + 75483716049 = 589617^2 + 274743^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=459963.

It is a junction number, because it is equal to n+sod(n) for n = 423131922693 and 423131922702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 2839811488 + ... + 2839811636.

Almost surely, 2^423131922738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423131922738

423131922738 is an abundant number, since it is smaller than the sum of its proper divisors (690490805403).

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

423131922738 is an frugal number, since it uses more digits than its factorization.

423131922738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 161 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 423131922738 in words is "four hundred twenty-three billion, one hundred thirty-one million, nine hundred twenty-two thousand, seven hundred thirty-eight".