5228538662961 has 36 divisors (see below), whose sum is σ = 7989680436660. Its totient is φ = 3294390294720.

The previous prime is 5228538662951. The next prime is 5228538662987. The reversal of 5228538662961 is 1692668358225.

5228538662961 is a `hidden beast` number, since 5 + 2 + 2 + 8 + 538 + 6 + 6 + 2 + 96 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2735613452961 + 2492925210000 = 1653969^2 + 1578900^2 .

It is not a de Polignac number, because 5228538662961 - 2¹⁵ = 5228538630193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5228538662911) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 543426 + ... + 3279083.

It is an arithmetic number, because the mean of its divisors is an integer number (221935567685).

Almost surely, 2^{5228538662961} is an apocalyptic number.

It is an amenable number.

5228538662961 is a deficient number, since it is larger than the sum of its proper divisors (2761141773699).

5228538662961 is a wasteful number, since it uses less digits than its factorization.

5228538662961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822974 (or 3822952 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 5228538662961 in words is "five trillion, two hundred twenty-eight billion, five hundred thirty-eight million, six hundred sixty-two thousand, nine hundred sixty-one".