423394180648 has 8 divisors (see below), whose sum is σ = 793864088730. Its totient is φ = 211697090320.

The previous prime is 423394180607. The next prime is 423394180679. The reversal of 423394180648 is 846081493324.

It can be written as a sum of positive squares in only one way, i.e., 421977561604 + 1416619044 = 649598^2 + 37638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 423394180595 and 423394180604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26462136283 + ... + 26462136298.

Almost surely, 2^423394180648 is an apocalyptic number.

It is an amenable number.

423394180648 is a deficient number, since it is larger than the sum of its proper divisors (370469908082).

423394180648 is a wasteful number, since it uses less digits than its factorization.

423394180648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52924272587 (or 52924272583 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 423394180648 in words is "four hundred twenty-three billion, three hundred ninety-four million, one hundred eighty thousand, six hundred forty-eight".