84282872817 has 64 divisors (see below), whose sum is σ = 134583321600. Its totient is φ = 46245323520.

The previous prime is 84282872761. The next prime is 84282872893. The reversal of 84282872817 is 71827828248.

It is a happy number.

It is not a de Polignac number, because 84282872817 - 2¹⁴ = 84282856433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84282872897) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4940859 + ... + 4957887.

It is an arithmetic number, because the mean of its divisors is an integer number (2102864400).

Almost surely, 2^84282872817 is an apocalyptic number.

It is an amenable number.

84282872817 is a deficient number, since it is larger than the sum of its proper divisors (50300448783).

84282872817 is a wasteful number, since it uses less digits than its factorization.

84282872817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17278.

The product of its digits is 6422528, while the sum is 57.

The spelling of 84282872817 in words is "eighty-four billion, two hundred eighty-two million, eight hundred seventy-two thousand, eight hundred seventeen".