423518513089 has 27 divisors (see below), whose sum is σ = 509239253601. Its totient is φ = 351188538120.

The previous prime is 423518513057. The next prime is 423518513147. The reversal of 423518513089 is 980315815324.

The square root of 423518513089 is 650783.

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

It is not a de Polignac number, because 423518513089 - 2⁵ = 423518513057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423518513689) 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, 141218412 + ... + 141221410.

Almost surely, 2^423518513089 is an apocalyptic number.

423518513089 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

423518513089 is the 650783-rd square number.

423518513089 is the 325392-nd centered octagonal number.

It is an amenable number.

423518513089 is a deficient number, since it is larger than the sum of its proper divisors (85720740512).

423518513089 is an frugal number, since it uses more digits than its factorization.

423518513089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

Multiplying 423518513089 by its sum of digits (49), we get a square (20752407141361 = 4555481²).

423518513089 divided by its sum of digits (49) gives a square (8643234961 = 92969²).

The spelling of 423518513089 in words is "four hundred twenty-three billion, five hundred eighteen million, five hundred thirteen thousand, eighty-nine".