32647661173 has 2 divisors, whose sum is σ = 32647661174. Its totient is φ = 32647661172.

The previous prime is 32647661153. The next prime is 32647661231. The reversal of 32647661173 is 37116674623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30883493169 + 1764168004 = 175737^2 + 42002^2 .

It is a cyclic number.

It is not a de Polignac number, because 32647661173 - 2¹³ = 32647652981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32647661153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16323830586 + 16323830587.

It is an arithmetic number, because the mean of its divisors is an integer number (16323830587).

Almost surely, 2^32647661173 is an apocalyptic number.

It is an amenable number.

32647661173 is a deficient number, since it is larger than the sum of its proper divisors (1).

32647661173 is an equidigital number, since it uses as much as digits as its factorization.

32647661173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The spelling of 32647661173 in words is "thirty-two billion, six hundred forty-seven million, six hundred sixty-one thousand, one hundred seventy-three".