423822078928 has 20 divisors (see below), whose sum is σ = 822027948228. Its totient is φ = 211685834240.

The previous prime is 423822078917. The next prime is 423822078937. The reversal of 423822078928 is 829870228324.

It can be written as a sum of positive squares in 2 ways, for example, as 112109789584 + 311712289344 = 334828^2 + 558312^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14059801 + ... + 14089912.

Almost surely, 2^423822078928 is an apocalyptic number.

It is an amenable number.

423822078928 is a deficient number, since it is larger than the sum of its proper divisors (398205869300).

423822078928 is a wasteful number, since it uses less digits than its factorization.

423822078928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28150662 (or 28150656 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 423822078928 in words is "four hundred twenty-three billion, eight hundred twenty-two million, seventy-eight thousand, nine hundred twenty-eight".