83303985745 has 4 divisors (see below), whose sum is σ = 99964782900. Its totient is φ = 66643188592.

The previous prime is 83303985731. The next prime is 83303985767. The reversal of 83303985745 is 54758930338.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29044339776 + 54259645969 = 170424^2 + 232937^2 .

It is a cyclic number.

It is not a de Polignac number, because 83303985745 - 2⁷ = 83303985617 is a prime.

It is a super-3 number, since 3×83303985745³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8330398570 + ... + 8330398579.

It is an arithmetic number, because the mean of its divisors is an integer number (24991195725).

Almost surely, 2^83303985745 is an apocalyptic number.

It is an amenable number.

83303985745 is a deficient number, since it is larger than the sum of its proper divisors (16660797155).

83303985745 is a wasteful number, since it uses less digits than its factorization.

83303985745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16660797154.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 83303985745 in words is "eighty-three billion, three hundred three million, nine hundred eighty-five thousand, seven hundred forty-five".