82833221977 has 4 divisors (see below), whose sum is σ = 90363514896. Its totient is φ = 75302929060.

The previous prime is 82833221929. The next prime is 82833222023. The reversal of 82833221977 is 77912233828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82833221977 - 2¹⁵ = 82833189209 is a prime.

It is a super-2 number, since 2×82833221977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82833201977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3765146443 + ... + 3765146464.

It is an arithmetic number, because the mean of its divisors is an integer number (22590878724).

Almost surely, 2^82833221977 is an apocalyptic number.

It is an amenable number.

82833221977 is a deficient number, since it is larger than the sum of its proper divisors (7530292919).

82833221977 is a wasteful number, since it uses less digits than its factorization.

82833221977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530292918.

The product of its digits is 2032128, while the sum is 52.

The spelling of 82833221977 in words is "eighty-two billion, eight hundred thirty-three million, two hundred twenty-one thousand, nine hundred seventy-seven".