264830515281 has 16 divisors (see below), whose sum is σ = 393579187200. Its totient is φ = 175996719504.

The previous prime is 264830515207. The next prime is 264830515289. The reversal of 264830515281 is 182515038462.

264830515281 is a `hidden beast` number, since 2 + 6 + 48 + 30 + 51 + 528 + 1 = 666.

It is not a de Polignac number, because 264830515281 - 2¹⁷ = 264830384209 is a prime.

It is a super-2 number, since 2×264830515281² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264830515289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15462321 + ... + 15479438.

It is an arithmetic number, because the mean of its divisors is an integer number (24598699200).

Almost surely, 2^264830515281 is an apocalyptic number.

It is an amenable number.

264830515281 is a deficient number, since it is larger than the sum of its proper divisors (128748671919).

264830515281 is a wasteful number, since it uses less digits than its factorization.

264830515281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30942085 (or 30942079 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 264830515281 in words is "two hundred sixty-four billion, eight hundred thirty million, five hundred fifteen thousand, two hundred eighty-one".