1284102266257 has 4 divisors (see below), whose sum is σ = 1351686596080. Its totient is φ = 1216517936436.

The previous prime is 1284102266231. The next prime is 1284102266261. The reversal of 1284102266257 is 7526622014821.

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 a de Polignac number, because none of the positive numbers 2^k-1284102266257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284102266207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33792164883 + ... + 33792164920.

It is an arithmetic number, because the mean of its divisors is an integer number (337921649020).

Almost surely, 2^{1284102266257} is an apocalyptic number.

It is an amenable number.

1284102266257 is a deficient number, since it is larger than the sum of its proper divisors (67584329823).

1284102266257 is an equidigital number, since it uses as much as digits as its factorization.

1284102266257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67584329822.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 1284102266257 in words is "one trillion, two hundred eighty-four billion, one hundred two million, two hundred sixty-six thousand, two hundred fifty-seven".