32916607921 has 2 divisors, whose sum is σ = 32916607922. Its totient is φ = 32916607920.

The previous prime is 32916607879. The next prime is 32916607937. The reversal of 32916607921 is 12970661923.

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., 18704391696 + 14212216225 = 136764^2 + 119215^2 .

It is a cyclic number.

It is not a de Polignac number, because 32916607921 - 2²⁹ = 32379737009 is a prime.

It is not a weakly prime, because it can be changed into another prime (32916607951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16458303960 + 16458303961.

It is an arithmetic number, because the mean of its divisors is an integer number (16458303961).

Almost surely, 2^32916607921 is an apocalyptic number.

It is an amenable number.

32916607921 is a deficient number, since it is larger than the sum of its proper divisors (1).

32916607921 is an equidigital number, since it uses as much as digits as its factorization.

32916607921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 32916607921 in words is "thirty-two billion, nine hundred sixteen million, six hundred seven thousand, nine hundred twenty-one".