65648772853 has 2 divisors, whose sum is σ = 65648772854. Its totient is φ = 65648772852.

The previous prime is 65648772803. The next prime is 65648772899. The reversal of 65648772853 is 35827784656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61937770129 + 3711002724 = 248873^2 + 60918^2 .

It is a cyclic number.

It is not a de Polignac number, because 65648772853 - 2¹⁷ = 65648641781 is a prime.

It is a super-2 number, since 2×65648772853² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65648772791 and 65648772800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65648772803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32824386426 + 32824386427.

It is an arithmetic number, because the mean of its divisors is an integer number (32824386427).

Almost surely, 2^65648772853 is an apocalyptic number.

It is an amenable number.

65648772853 is a deficient number, since it is larger than the sum of its proper divisors (1).

65648772853 is an equidigital number, since it uses as much as digits as its factorization.

65648772853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67737600, while the sum is 61.

The spelling of 65648772853 in words is "sixty-five billion, six hundred forty-eight million, seven hundred seventy-two thousand, eight hundred fifty-three".