1285276388117 has 8 divisors (see below), whose sum is σ = 1309557124224. Its totient is φ = 1260996772048.

The previous prime is 1285276388113. The next prime is 1285276388141. The reversal of 1285276388117 is 7118836725821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1285276388117 - 2² = 1285276388113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285276388113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250728 + ... + 2763390.

It is an arithmetic number, because the mean of its divisors is an integer number (163694640528).

Almost surely, 2^{1285276388117} is an apocalyptic number.

It is an amenable number.

1285276388117 is a deficient number, since it is larger than the sum of its proper divisors (24280736107).

1285276388117 is an equidigital number, since it uses as much as digits as its factorization.

1285276388117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560019.

The product of its digits is 9031680, while the sum is 59.

The spelling of 1285276388117 in words is "one trillion, two hundred eighty-five billion, two hundred seventy-six million, three hundred eighty-eight thousand, one hundred seventeen".