85481783353 has 4 divisors (see below), whose sum is σ = 87792101860. Its totient is φ = 83171464848.

The previous prime is 85481783333. The next prime is 85481783363. The reversal of 85481783353 is 35338718458.

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 77346284544 + 8135498809 = 278112^2 + 90197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85481783353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85481783294 and 85481783303.

It is not an unprimeable number, because it can be changed into a prime (85481783333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155159198 + ... + 1155159271.

It is an arithmetic number, because the mean of its divisors is an integer number (21948025465).

Almost surely, 2^85481783353 is an apocalyptic number.

It is an amenable number.

85481783353 is a deficient number, since it is larger than the sum of its proper divisors (2310318507).

85481783353 is a wasteful number, since it uses less digits than its factorization.

85481783353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310318506.

The product of its digits is 9676800, while the sum is 55.

The spelling of 85481783353 in words is "eighty-five billion, four hundred eighty-one million, seven hundred eighty-three thousand, three hundred fifty-three".