5621274721265 has 32 divisors (see below), whose sum is σ = 7871824615680. Its totient is φ = 3774035303424.

The previous prime is 5621274721261. The next prime is 5621274721277.

5621274721265 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 5621274721265 - 2² = 5621274721261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5621274721261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7679555 + ... + 8379624.

It is an arithmetic number, because the mean of its divisors is an integer number (245994519240).

Almost surely, 2^{5621274721265} is an apocalyptic number.

It is an amenable number.

5621274721265 is a deficient number, since it is larger than the sum of its proper divisors (2250549894415).

5621274721265 is a wasteful number, since it uses less digits than its factorization.

5621274721265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16059401.

The product of its digits is 2822400, while the sum is 50.

The spelling of 5621274721265 in words is "five trillion, six hundred twenty-one billion, two hundred seventy-four million, seven hundred twenty-one thousand, two hundred sixty-five".