982975890749 has 2 divisors, whose sum is σ = 982975890750. Its totient is φ = 982975890748.

The previous prime is 982975890727. The next prime is 982975890797. The reversal of 982975890749 is 947098579289.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805608568249 + 177367322500 = 897557^2 + 421150^2 .

It is a cyclic number.

It is not a de Polignac number, because 982975890749 - 2²⁴ = 982959113533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 982975890749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (982975890719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491487945374 + 491487945375.

It is an arithmetic number, because the mean of its divisors is an integer number (491487945375).

Almost surely, 2^982975890749 is an apocalyptic number.

It is an amenable number.

982975890749 is a deficient number, since it is larger than the sum of its proper divisors (1).

982975890749 is an equidigital number, since it uses as much as digits as its factorization.

982975890749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823011840, while the sum is 77.

The spelling of 982975890749 in words is "nine hundred eighty-two billion, nine hundred seventy-five million, eight hundred ninety thousand, seven hundred forty-nine".