83351018849 has 24 divisors (see below), whose sum is σ = 98828116200. Its totient is φ = 70067821824.

The previous prime is 83351018809. The next prime is 83351018857. The reversal of 83351018849 is 94881015338.

It can be written as a sum of positive squares in 4 ways, for example, as 28639469824 + 54711549025 = 169232^2 + 233905^2 .

It is a de Polignac number, because none of the positive numbers 2^k-83351018849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83351018797 and 83351018806.

It is not an unprimeable number, because it can be changed into a prime (83351018809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8910827 + ... + 8920175.

It is an arithmetic number, because the mean of its divisors is an integer number (4117838175).

Almost surely, 2^83351018849 is an apocalyptic number.

It is an amenable number.

83351018849 is a deficient number, since it is larger than the sum of its proper divisors (15477097351).

83351018849 is a wasteful number, since it uses less digits than its factorization.

83351018849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12849 (or 12842 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 83351018849 in words is "eighty-three billion, three hundred fifty-one million, eighteen thousand, eight hundred forty-nine".