32353939921 has 2 divisors, whose sum is σ = 32353939922. Its totient is φ = 32353939920.

The previous prime is 32353939907. The next prime is 32353939931. The reversal of 32353939921 is 12993935323.

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., 23612624896 + 8741315025 = 153664^2 + 93495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32353939921 is a prime.

It is not a weakly prime, because it can be changed into another prime (32353939931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16176969960 + 16176969961.

It is an arithmetic number, because the mean of its divisors is an integer number (16176969961).

Almost surely, 2^32353939921 is an apocalyptic number.

It is an amenable number.

32353939921 is a deficient number, since it is larger than the sum of its proper divisors (1).

32353939921 is an equidigital number, since it uses as much as digits as its factorization.

32353939921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 49.

The spelling of 32353939921 in words is "thirty-two billion, three hundred fifty-three million, nine hundred thirty-nine thousand, nine hundred twenty-one".