82745282890 has 16 divisors (see below), whose sum is σ = 148956623208. Its totient is φ = 33094754496.

The previous prime is 82745282869. The next prime is 82745282923. The reversal of 82745282890 is 9828254728.

It can be written as a sum of positive squares in 4 ways, for example, as 49346623881 + 33398659009 = 222141^2 + 182753^2 .

It is a super-2 number, since 2×82745282890² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315117 + ... + 514576.

Almost surely, 2^82745282890 is an apocalyptic number.

82745282890 is a deficient number, since it is larger than the sum of its proper divisors (66211340318).

82745282890 is a wasteful number, since it uses less digits than its factorization.

82745282890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839673.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 82745282890 in words is "eighty-two billion, seven hundred forty-five million, two hundred eighty-two thousand, eight hundred ninety".