423394180736 has 16 divisors (see below), whose sum is σ = 843480594690. Its totient is φ = 211697090304.

The previous prime is 423394180733. The next prime is 423394180787. The reversal of 423394180736 is 637081493324.

It can be written as a sum of positive squares in only one way, i.e., 423072193600 + 321987136 = 650440^2 + 17944^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×423394180736² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423394180733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653883391 + ... + 1653883646.

Almost surely, 2^423394180736 is an apocalyptic number.

It is an amenable number.

423394180736 is a deficient number, since it is larger than the sum of its proper divisors (420086413954).

423394180736 is an equidigital number, since it uses as much as digits as its factorization.

423394180736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307767051 (or 3307767039 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 423394180736 in words is "four hundred twenty-three billion, three hundred ninety-four million, one hundred eighty thousand, seven hundred thirty-six".