32728863773 has 2 divisors, whose sum is σ = 32728863774. Its totient is φ = 32728863772.

The previous prime is 32728863767. The next prime is 32728863793. The reversal of 32728863773 is 37736882723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20742336484 + 11986527289 = 144022^2 + 109483^2 .

It is a cyclic number.

It is not a de Polignac number, because 32728863773 - 2⁴ = 32728863757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32728863793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16364431886 + 16364431887.

It is an arithmetic number, because the mean of its divisors is an integer number (16364431887).

Almost surely, 2^32728863773 is an apocalyptic number.

It is an amenable number.

32728863773 is a deficient number, since it is larger than the sum of its proper divisors (1).

32728863773 is an equidigital number, since it uses as much as digits as its factorization.

32728863773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 56.

The spelling of 32728863773 in words is "thirty-two billion, seven hundred twenty-eight million, eight hundred sixty-three thousand, seven hundred seventy-three".