423544556450 has 24 divisors (see below), whose sum is σ = 788016563712. Its totient is φ = 169369717520.

The previous prime is 423544556423. The next prime is 423544556471. The reversal of 423544556450 is 54655445324.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423544556395 and 423544556404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1024514 + ... + 1377213.

It is an arithmetic number, because the mean of its divisors is an integer number (32834023488).

Almost surely, 2^423544556450 is an apocalyptic number.

423544556450 is a deficient number, since it is larger than the sum of its proper divisors (364472007262).

423544556450 is a wasteful number, since it uses less digits than its factorization.

423544556450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405266 (or 2405261 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 47.

The spelling of 423544556450 in words is "four hundred twenty-three billion, five hundred forty-four million, five hundred fifty-six thousand, four hundred fifty".