32686366261 has 2 divisors, whose sum is σ = 32686366262. Its totient is φ = 32686366260.

The previous prime is 32686366253. The next prime is 32686366283. The reversal of 32686366261 is 16266368623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22430753361 + 10255612900 = 149769^2 + 101270^2 .

It is a cyclic number.

It is not a de Polignac number, because 32686366261 - 2³ = 32686366253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32686366231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16343183130 + 16343183131.

It is an arithmetic number, because the mean of its divisors is an integer number (16343183131).

Almost surely, 2^32686366261 is an apocalyptic number.

It is an amenable number.

32686366261 is a deficient number, since it is larger than the sum of its proper divisors (1).

32686366261 is an equidigital number, since it uses as much as digits as its factorization.

32686366261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 49.

The spelling of 32686366261 in words is "thirty-two billion, six hundred eighty-six million, three hundred sixty-six thousand, two hundred sixty-one".