1282065083721 has 6 divisors (see below), whose sum is σ = 1851871787610. Its totient is φ = 854710055808.

The previous prime is 1282065083681. The next prime is 1282065083723. The reversal of 1282065083721 is 1273805602821.

1282065083721 is a `hidden beast` number, since 1 + 28 + 206 + 50 + 8 + 372 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 788890358025 + 493174725696 = 888195^2 + 702264^2 .

It is not a de Polignac number, because 1282065083721 - 2¹¹ = 1282065081673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1282065083723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71225837976 + ... + 71225837993.

It is an arithmetic number, because the mean of its divisors is an integer number (308645297935).

Almost surely, 2^{1282065083721} is an apocalyptic number.

It is an amenable number.

1282065083721 is a deficient number, since it is larger than the sum of its proper divisors (569806703889).

1282065083721 is a wasteful number, since it uses less digits than its factorization.

1282065083721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142451675975 (or 142451675972 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 1282065083721 in words is "one trillion, two hundred eighty-two billion, sixty-five million, eighty-three thousand, seven hundred twenty-one".