1283014928665 has 4 divisors (see below), whose sum is σ = 1539617914404. Its totient is φ = 1026411942928.

The previous prime is 1283014928651. The next prime is 1283014928711. The reversal of 1283014928665 is 5668294103821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 791507370889 + 491507557776 = 889667^2 + 701076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283014928665 - 2⁷ = 1283014928537 is a prime.

It is a super-2 number, since 2×1283014928665² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 128301492862 + ... + 128301492871.

It is an arithmetic number, because the mean of its divisors is an integer number (384904478601).

Almost surely, 2^{1283014928665} is an apocalyptic number.

It is an amenable number.

1283014928665 is a deficient number, since it is larger than the sum of its proper divisors (256602985739).

1283014928665 is an equidigital number, since it uses as much as digits as its factorization.

1283014928665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256602985738.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 1283014928665 in words is "one trillion, two hundred eighty-three billion, fourteen million, nine hundred twenty-eight thousand, six hundred sixty-five".