1285102218399 has 8 divisors (see below), whose sum is σ = 1713478036992. Its totient is φ = 856730606040.

The previous prime is 1285102218383. The next prime is 1285102218461. The reversal of 1285102218399 is 9938122015821.

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

It is not a de Polignac number, because 1285102218399 - 2⁴ = 1285102218383 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285102218349) 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 7 ways as a sum of consecutive naturals, for example, 251769 + ... + 1622834.

It is an arithmetic number, because the mean of its divisors is an integer number (214184754624).

Almost surely, 2^{1285102218399} is an apocalyptic number.

1285102218399 is a deficient number, since it is larger than the sum of its proper divisors (428375818593).

1285102218399 is a wasteful number, since it uses less digits than its factorization.

1285102218399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103117.

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 1285102218399 in words is "one trillion, two hundred eighty-five billion, one hundred two million, two hundred eighteen thousand, three hundred ninety-nine".