6224231615281 has 9 divisors (see below), whose sum is σ = 6446336212641. Its totient is φ = 6009533083344.

The previous prime is 6224231615257. The next prime is 6224231615467. The reversal of 6224231615281 is 1825161324226.

The square root of 6224231615281 is 2494841.

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

It can be written as a sum of positive squares in 4 ways, for example, as 61326064881 + 6162905550400 = 247641^2 + 2482520^2 .

It is not a de Polignac number, because 6224231615281 - 2⁷ = 6224231615153 is a prime.

It is a super-2 number, since 2×6224231615281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6224231685281) 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, 72307375 + ... + 72393403.

Almost surely, 2^{6224231615281} is an apocalyptic number.

6224231615281 is the 2494841-st square number.

6224231615281 is the 1247421-st centered octagonal number.

It is an amenable number.

6224231615281 is a deficient number, since it is larger than the sum of its proper divisors (222104597360).

6224231615281 is an frugal number, since it uses more digits than its factorization.

6224231615281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172116 (or 86058 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The spelling of 6224231615281 in words is "six trillion, two hundred twenty-four billion, two hundred thirty-one million, six hundred fifteen thousand, two hundred eighty-one".