211832665753 has 2 divisors, whose sum is σ = 211832665754. Its totient is φ = 211832665752.

The previous prime is 211832665717. The next prime is 211832665757. The reversal of 211832665753 is 357566238112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200478271504 + 11354394249 = 447748^2 + 106557^2 .

It is a cyclic number.

It is not a de Polignac number, because 211832665753 - 2²¹ = 211830568601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211832665697 and 211832665706.

It is not a weakly prime, because it can be changed into another prime (211832665757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105916332876 + 105916332877.

It is an arithmetic number, because the mean of its divisors is an integer number (105916332877).

Almost surely, 2^211832665753 is an apocalyptic number.

It is an amenable number.

211832665753 is a deficient number, since it is larger than the sum of its proper divisors (1).

211832665753 is an equidigital number, since it uses as much as digits as its factorization.

211832665753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The spelling of 211832665753 in words is "two hundred eleven billion, eight hundred thirty-two million, six hundred sixty-five thousand, seven hundred fifty-three".