423463849081 has 27 divisors (see below), whose sum is σ = 533482573743. Its totient is φ = 335001466800.

The previous prime is 423463849051. The next prime is 423463849139. The reversal of 423463849081 is 180948364324.

The square root of 423463849081 is 650741.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 62642581225 + 360821267856 = 250285^2 + 600684^2 .

It is not a de Polignac number, because 423463849081 - 2¹⁹ = 423463324793 is a prime.

It is a super-2 number, since 2×423463849081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423463849051) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 59213856 + ... + 59221006.

Almost surely, 2^423463849081 is an apocalyptic number.

423463849081 is the 650741-st square number.

423463849081 is the 325371-st centered octagonal number.

It is an amenable number.

423463849081 is a deficient number, since it is larger than the sum of its proper divisors (110018724662).

423463849081 is an frugal number, since it uses more digits than its factorization.

423463849081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14342 (or 7171 counting only the distinct ones).

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

The spelling of 423463849081 in words is "four hundred twenty-three billion, four hundred sixty-three million, eight hundred forty-nine thousand, eighty-one".