82728768833 has 16 divisors (see below), whose sum is σ = 83566619136. Its totient is φ = 81896216640.

The previous prime is 82728768767. The next prime is 82728768841. The reversal of 82728768833 is 33886782728.

It is a cyclic number.

It is not a de Polignac number, because 82728768833 - 2²² = 82724574529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82728728833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52259960 + ... + 52261542.

It is an arithmetic number, because the mean of its divisors is an integer number (5222913696).

Almost surely, 2^82728768833 is an apocalyptic number.

It is an amenable number.

82728768833 is a deficient number, since it is larger than the sum of its proper divisors (837850303).

82728768833 is a wasteful number, since it uses less digits than its factorization.

82728768833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944.

The product of its digits is 43352064, while the sum is 62.

The spelling of 82728768833 in words is "eighty-two billion, seven hundred twenty-eight million, seven hundred sixty-eight thousand, eight hundred thirty-three".