423399956607 has 6 divisors (see below), whose sum is σ = 611577715112. Its totient is φ = 282266637732.

The previous prime is 423399956543. The next prime is 423399956611. The reversal of 423399956607 is 706659993324.

It is not a de Polignac number, because 423399956607 - 2⁶ = 423399956543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423399956657) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 23522219803 + ... + 23522219820.

Almost surely, 2^423399956607 is an apocalyptic number.

423399956607 is a deficient number, since it is larger than the sum of its proper divisors (188177758505).

423399956607 is a wasteful number, since it uses less digits than its factorization.

423399956607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47044439629 (or 47044439626 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 63.

The spelling of 423399956607 in words is "four hundred twenty-three billion, three hundred ninety-nine million, nine hundred fifty-six thousand, six hundred seven".