243160430769 has 9 divisors (see below), whose sum is σ = 351233870169. Its totient is φ = 162105967620.

The previous prime is 243160430687. The next prime is 243160430791. The reversal of 243160430769 is 967034061342.

The square root of 243160430769 is 493113.

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

243160430769 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 604 + 30 + 7 + 6 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 243160430769 - 2⁷ = 243160430641 is a prime.

It is a super-2 number, since 2×243160430769² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243160430269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1397154 + ... + 1561524.

Almost surely, 2^243160430769 is an apocalyptic number.

243160430769 is the 493113-rd square number.

243160430769 is the 246557-th centered octagonal number.

It is an amenable number.

243160430769 is a deficient number, since it is larger than the sum of its proper divisors (108073439400).

243160430769 is an frugal number, since it uses more digits than its factorization.

243160430769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328748 (or 164374 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 243160430769 in words is "two hundred forty-three billion, one hundred sixty million, four hundred thirty thousand, seven hundred sixty-nine".