72846664853 has 2 divisors, whose sum is σ = 72846664854. Its totient is φ = 72846664852.

The previous prime is 72846664801. The next prime is 72846664871. The reversal of 72846664853 is 35846664827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72413733604 + 432931249 = 269098^2 + 20807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72846664853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72846664792 and 72846664801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72846669853) 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 as a sum of consecutive naturals, namely, 36423332426 + 36423332427.

It is an arithmetic number, because the mean of its divisors is an integer number (36423332427).

Almost surely, 2^72846664853 is an apocalyptic number.

It is an amenable number.

72846664853 is a deficient number, since it is larger than the sum of its proper divisors (1).

72846664853 is an equidigital number, since it uses as much as digits as its factorization.

72846664853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46448640, while the sum is 59.

The spelling of 72846664853 in words is "seventy-two billion, eight hundred forty-six million, six hundred sixty-four thousand, eight hundred fifty-three".