32866349783921 has 2 divisors, whose sum is σ = 32866349783922. Its totient is φ = 32866349783920.

The previous prime is 32866349783881. The next prime is 32866349783959. The reversal of 32866349783921 is 12938794366823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32259719095696 + 606630688225 = 5679764^2 + 778865^2 .

It is a cyclic number.

It is not a de Polignac number, because 32866349783921 - 2¹⁸ = 32866349521777 is a prime.

It is not a weakly prime, because it can be changed into another prime (32866309783921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16433174891960 + 16433174891961.

It is an arithmetic number, because the mean of its divisors is an integer number (16433174891961).

Almost surely, 2^{32866349783921} is an apocalyptic number.

It is an amenable number.

32866349783921 is a deficient number, since it is larger than the sum of its proper divisors (1).

32866349783921 is an equidigital number, since it uses as much as digits as its factorization.

32866349783921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564350976, while the sum is 71.

The spelling of 32866349783921 in words is "thirty-two trillion, eight hundred sixty-six billion, three hundred forty-nine million, seven hundred eighty-three thousand, nine hundred twenty-one".