83510859449 has 16 divisors (see below), whose sum is σ = 89071644816. Its totient is φ = 78024192000.

The previous prime is 83510859437. The next prime is 83510859469. The reversal of 83510859449 is 94495801538.

It can be written as a sum of positive squares in 8 ways, for example, as 425679424 + 83085180025 = 20632^2 + 288245^2 .

It is a cyclic number.

It is not a de Polignac number, because 83510859449 - 2⁴ = 83510859433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83510859394 and 83510859403.

It is not an unprimeable number, because it can be changed into a prime (83510859469) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1266599 + ... + 1330899.

It is an arithmetic number, because the mean of its divisors is an integer number (5566977801).

Almost surely, 2^83510859449 is an apocalyptic number.

It is an amenable number.

83510859449 is a deficient number, since it is larger than the sum of its proper divisors (5560785367).

83510859449 is a wasteful number, since it uses less digits than its factorization.

83510859449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64876.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 83510859449 in words is "eighty-three billion, five hundred ten million, eight hundred fifty-nine thousand, four hundred forty-nine".