83398380749 has 2 divisors, whose sum is σ = 83398380750. Its totient is φ = 83398380748.

The previous prime is 83398380697. The next prime is 83398380773. The reversal of 83398380749 is 94708389338.

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., 83351731849 + 46648900 = 288707^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 83398380749 - 2²⁸ = 83129945293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83398380691 and 83398380700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83398320749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41699190374 + 41699190375.

It is an arithmetic number, because the mean of its divisors is an integer number (41699190375).

Almost surely, 2^83398380749 is an apocalyptic number.

It is an amenable number.

83398380749 is a deficient number, since it is larger than the sum of its proper divisors (1).

83398380749 is an equidigital number, since it uses as much as digits as its factorization.

83398380749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 83398380749 in words is "eighty-three billion, three hundred ninety-eight million, three hundred eighty thousand, seven hundred forty-nine".