1217787045006 has 32 divisors (see below), whose sum is σ = 2793419013888. Its totient is φ = 346700934720.

The previous prime is 1217787044897. The next prime is 1217787045029. The reversal of 1217787045006 is 6005407877121.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 51580600 + ... + 51604203.

It is an arithmetic number, because the mean of its divisors is an integer number (87294344184).

Almost surely, 2^{1217787045006} is an apocalyptic number.

1217787045006 is an abundant number, since it is smaller than the sum of its proper divisors (1575631968882).

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

1217787045006 is a wasteful number, since it uses less digits than its factorization.

1217787045006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103185096.

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 1217787045006 in words is "one trillion, two hundred seventeen billion, seven hundred eighty-seven million, forty-five thousand, six".