83398320749 has 2 divisors, whose sum is σ = 83398320750. Its totient is φ = 83398320748.

The previous prime is 83398320739. The next prime is 83398320769. The reversal of 83398320749 is 94702389338.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73017767524 + 10380553225 = 270218^2 + 101885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83398320749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83398320694 and 83398320703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83398320739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41699160374 + 41699160375.

It is an arithmetic number, because the mean of its divisors is an integer number (41699160375).

Almost surely, 2^83398320749 is an apocalyptic number.

It is an amenable number.

83398320749 is a deficient number, since it is larger than the sum of its proper divisors (1).

83398320749 is an equidigital number, since it uses as much as digits as its factorization.

83398320749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 83398320749 in words is "eighty-three billion, three hundred ninety-eight million, three hundred twenty thousand, seven hundred forty-nine".