65813872853 has 2 divisors, whose sum is σ = 65813872854. Its totient is φ = 65813872852.

The previous prime is 65813872847. The next prime is 65813872871. The reversal of 65813872853 is 35827831856.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57981268849 + 7832604004 = 240793^2 + 88502^2 .

It is a cyclic number.

It is not a de Polignac number, because 65813872853 - 2⁴ = 65813872837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65813872843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32906936426 + 32906936427.

It is an arithmetic number, because the mean of its divisors is an integer number (32906936427).

Almost surely, 2^65813872853 is an apocalyptic number.

It is an amenable number.

65813872853 is a deficient number, since it is larger than the sum of its proper divisors (1).

65813872853 is an equidigital number, since it uses as much as digits as its factorization.

65813872853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

The spelling of 65813872853 in words is "sixty-five billion, eight hundred thirteen million, eight hundred seventy-two thousand, eight hundred fifty-three".