229697815824 has 75 divisors (see below), whose sum is σ = 664862060533. Its totient is φ = 76560187392.

The previous prime is 229697815817. The next prime is 229697815861. The reversal of 229697815824 is 428518796922.

The square root of 229697815824 is 479268.

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., 80985776400 + 148712039424 = 284580^2 + 385632^2 .

It is a super-2 number, since 2×229697815824² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17246992 + ... + 17260304.

Almost surely, 2^229697815824 is an apocalyptic number.

229697815824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

229697815824 is the 479268-th square number.

It is an amenable number.

229697815824 is an abundant number, since it is smaller than the sum of its proper divisors (435164244709).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229697815824 is an frugal number, since it uses more digits than its factorization.

229697815824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26646 (or 13318 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 229697815824 in words is "two hundred twenty-nine billion, six hundred ninety-seven million, eight hundred fifteen thousand, eight hundred twenty-four".