83256266728 has 8 divisors (see below), whose sum is σ = 156105500130. Its totient is φ = 41628133360.

The previous prime is 83256266677. The next prime is 83256266747. The reversal of 83256266728 is 82766265238.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 83210325444 + 45941284 = 288462^2 + 6778^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5203516663 + ... + 5203516678.

Almost surely, 2^83256266728 is an apocalyptic number.

It is an amenable number.

83256266728 is a deficient number, since it is larger than the sum of its proper divisors (72849233402).

83256266728 is a wasteful number, since it uses less digits than its factorization.

83256266728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407033347 (or 10407033343 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 55.

The spelling of 83256266728 in words is "eighty-three billion, two hundred fifty-six million, two hundred sixty-six thousand, seven hundred twenty-eight".