423914218628 has 24 divisors (see below), whose sum is σ = 762065986584. Its totient is φ = 206183577600.

The previous prime is 423914218613. The next prime is 423914218649. The reversal of 423914218628 is 826812419324.

It can be written as a sum of positive squares in 4 ways, for example, as 26399100484 + 397515118144 = 162478^2 + 630488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373988 + ... + 993828.

It is an arithmetic number, because the mean of its divisors is an integer number (31752749441).

Almost surely, 2^423914218628 is an apocalyptic number.

It is an amenable number.

423914218628 is a deficient number, since it is larger than the sum of its proper divisors (338151767956).

423914218628 is a wasteful number, since it uses less digits than its factorization.

423914218628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624503 (or 624501 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The spelling of 423914218628 in words is "four hundred twenty-three billion, nine hundred fourteen million, two hundred eighteen thousand, six hundred twenty-eight".