82000821830 has 32 divisors (see below), whose sum is σ = 148740429600. Its totient is φ = 32547474432.

The previous prime is 82000821823. The next prime is 82000821883. The reversal of 82000821830 is 3812800028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861654 + ... + 2890166.

It is an arithmetic number, because the mean of its divisors is an integer number (4648138425).

Almost surely, 2^82000821830 is an apocalyptic number.

82000821830 is a deficient number, since it is larger than the sum of its proper divisors (66739607770).

82000821830 is a wasteful number, since it uses less digits than its factorization.

82000821830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30728.

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 82000821830 in words is "eighty-two billion, eight hundred twenty-one thousand, eight hundred thirty".