5281064745245 has 24 divisors (see below), whose sum is σ = 6434401388472. Its totient is φ = 4161064033280.

The previous prime is 5281064745217. The next prime is 5281064745269. The reversal of 5281064745245 is 5425474601825.

It can be written as a sum of positive squares in 4 ways, for example, as 3156172539844 + 2124892205401 = 1776562^2 + 1457701^2 .

It is not a de Polignac number, because 5281064745245 - 2²⁶ = 5280997636381 is a prime.

It is a super-2 number, since 2×5281064745245² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24518057 + ... + 24732513.

It is an arithmetic number, because the mean of its divisors is an integer number (268100057853).

Almost surely, 2^{5281064745245} is an apocalyptic number.

It is an amenable number.

5281064745245 is a deficient number, since it is larger than the sum of its proper divisors (1153336643227).

5281064745245 is an equidigital number, since it uses as much as digits as its factorization.

5281064745245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215581 (or 215510 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 53.

The spelling of 5281064745245 in words is "five trillion, two hundred eighty-one billion, sixty-four million, seven hundred forty-five thousand, two hundred forty-five".