982307255659021 has 2 divisors, whose sum is σ = 982307255659022. Its totient is φ = 982307255659020.

The previous prime is 982307255659013. The next prime is 982307255659031. The reversal of 982307255659021 is 120956552703289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503867315166121 + 478439940492900 = 22446989^2 + 21873270^2 .

It is a cyclic number.

It is not a de Polignac number, because 982307255659021 - 2³ = 982307255659013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982307255659031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491153627829510 + 491153627829511.

It is an arithmetic number, because the mean of its divisors is an integer number (491153627829511).

Almost surely, 2^{982307255659021} is an apocalyptic number.

It is an amenable number.

982307255659021 is a deficient number, since it is larger than the sum of its proper divisors (1).

982307255659021 is an equidigital number, since it uses as much as digits as its factorization.

982307255659021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648000, while the sum is 64.

The spelling of 982307255659021 in words is "nine hundred eighty-two trillion, three hundred seven billion, two hundred fifty-five million, six hundred fifty-nine thousand, twenty-one".