532817680621 has 2 divisors, whose sum is σ = 532817680622. Its totient is φ = 532817680620.

The previous prime is 532817680589. The next prime is 532817680643. The reversal of 532817680621 is 126086718235.

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., 453448704996 + 79368975625 = 673386^2 + 281725^2 .

It is a cyclic number.

It is not a de Polignac number, because 532817680621 - 2⁵ = 532817680589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532817600621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266408840310 + 266408840311.

It is an arithmetic number, because the mean of its divisors is an integer number (266408840311).

Almost surely, 2^532817680621 is an apocalyptic number.

It is an amenable number.

532817680621 is a deficient number, since it is larger than the sum of its proper divisors (1).

532817680621 is an equidigital number, since it uses as much as digits as its factorization.

532817680621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 532817680621 in words is "five hundred thirty-two billion, eight hundred seventeen million, six hundred eighty thousand, six hundred twenty-one".