9704533100021 has 2 divisors, whose sum is σ = 9704533100022. Its totient is φ = 9704533100020.

The previous prime is 9704533100011. The next prime is 9704533100051. The reversal of 9704533100021 is 1200013354079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9098487976900 + 606045123121 = 3016370^2 + 778489^2 .

It is a cyclic number.

It is not a de Polignac number, because 9704533100021 - 2⁶ = 9704533099957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9704533100011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852266550010 + 4852266550011.

It is an arithmetic number, because the mean of its divisors is an integer number (4852266550011).

Almost surely, 2^{9704533100021} is an apocalyptic number.

It is an amenable number.

9704533100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9704533100021 is an equidigital number, since it uses as much as digits as its factorization.

9704533100021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 9704533100021 in words is "nine trillion, seven hundred four billion, five hundred thirty-three million, one hundred thousand, twenty-one".