4280516861481 has 81 divisors (see below), whose sum is σ = 7286271347901. Its totient is φ = 2414503801584.

The previous prime is 4280516861441. The next prime is 4280516861507. The reversal of 4280516861481 is 1841686150824.

The square root of 4280516861481 is 2068941.

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

4280516861481 is a `hidden beast` number, since 4 + 2 + 8 + 0 + 5 + 16 + 8 + 614 + 8 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4280516861481 is a prime.

It is a super-2 number, since 2×4280516861481² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4280516861441) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3606163570 + ... + 3606164756.

Almost surely, 2^{4280516861481} is an apocalyptic number.

4280516861481 is the 2068941-st square number.

4280516861481 is the 1034471-st centered octagonal number.

It is an amenable number.

4280516861481 is a deficient number, since it is larger than the sum of its proper divisors (3005754486420).

4280516861481 is an frugal number, since it uses more digits than its factorization.

4280516861481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The spelling of 4280516861481 in words is "four trillion, two hundred eighty billion, five hundred sixteen million, eight hundred sixty-one thousand, four hundred eighty-one".