423533553144 has 32 divisors (see below), whose sum is σ = 1140282643920. Its totient is φ = 130318016256.

The previous prime is 423533553139. The next prime is 423533553181. The reversal of 423533553144 is 441355335324.

It is a junction number, because it is equal to n+sod(n) for n = 423533553096 and 423533553105.

It is a congruent number.

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, 678739357 + ... + 678739980.

Almost surely, 2^423533553144 is an apocalyptic number.

It is an amenable number.

423533553144 is an abundant number, since it is smaller than the sum of its proper divisors (716749090776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423533553144 is a wasteful number, since it uses less digits than its factorization.

423533553144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357479359 (or 1357479355 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 42.

Adding to 423533553144 its reverse (441355335324), we get a palindrome (864888888468).

The spelling of 423533553144 in words is "four hundred twenty-three billion, five hundred thirty-three million, five hundred fifty-three thousand, one hundred forty-four".