1286034321168 has 50 divisors (see below), whose sum is σ = 3722156437934. Its totient is φ = 428678106624.

The previous prime is 1286034321139. The next prime is 1286034321203. The reversal of 1286034321168 is 8611234306821.

1286034321168 is a `hidden beast` number, since 1 + 2 + 8 + 603 + 4 + 3 + 21 + 16 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1170836530704 + 115197790464 = 1082052^2 + 339408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 496153921 + ... + 496156512.

Almost surely, 2^{1286034321168} is an apocalyptic number.

1286034321168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1286034321168 is an abundant number, since it is smaller than the sum of its proper divisors (2436122116766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1286034321168 is an equidigital number, since it uses as much as digits as its factorization.

1286034321168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992310453 (or 992310438 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

Adding to 1286034321168 its reverse (8611234306821), we get a palindrome (9897268627989).

The spelling of 1286034321168 in words is "one trillion, two hundred eighty-six billion, thirty-four million, three hundred twenty-one thousand, one hundred sixty-eight".