423640355365 has 16 divisors (see below), whose sum is σ = 527909760000. Its totient is φ = 326015660160.

The previous prime is 423640355357. The next prime is 423640355387. The reversal of 423640355365 is 563553046324.

It is not a de Polignac number, because 423640355365 - 2³ = 423640355357 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 8157240 + ... + 8209009.

It is an arithmetic number, because the mean of its divisors is an integer number (32994360000).

Almost surely, 2^423640355365 is an apocalyptic number.

It is an amenable number.

423640355365 is a deficient number, since it is larger than the sum of its proper divisors (104269404635).

423640355365 is a wasteful number, since it uses less digits than its factorization.

423640355365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366452.

The product of its (nonzero) digits is 3888000, while the sum is 46.

The spelling of 423640355365 in words is "four hundred twenty-three billion, six hundred forty million, three hundred fifty-five thousand, three hundred sixty-five".