853620520133 has 2 divisors, whose sum is σ = 853620520134. Its totient is φ = 853620520132.

The previous prime is 853620520127. The next prime is 853620520147. The reversal of 853620520133 is 331025026358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634280037889 + 219340482244 = 796417^2 + 468338^2 .

It is a cyclic number.

It is not a de Polignac number, because 853620520133 - 2¹² = 853620516037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853620520183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426810260066 + 426810260067.

It is an arithmetic number, because the mean of its divisors is an integer number (426810260067).

Almost surely, 2^853620520133 is an apocalyptic number.

It is an amenable number.

853620520133 is a deficient number, since it is larger than the sum of its proper divisors (1).

853620520133 is an equidigital number, since it uses as much as digits as its factorization.

853620520133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 853620520133 in words is "eight hundred fifty-three billion, six hundred twenty million, five hundred twenty thousand, one hundred thirty-three".