1217411064842 has 32 divisors (see below), whose sum is σ = 2094117217920. Its totient is φ = 519968030400.

The previous prime is 1217411064833. The next prime is 1217411064917. The reversal of 1217411064842 is 2484601147121.

It is a self number, because there is not a number n which added to its sum of digits gives 1217411064842.

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, 6814928 + ... + 6991284.

It is an arithmetic number, because the mean of its divisors is an integer number (65441163060).

Almost surely, 2^{1217411064842} is an apocalyptic number.

1217411064842 is a deficient number, since it is larger than the sum of its proper divisors (876706153078).

1217411064842 is a wasteful number, since it uses less digits than its factorization.

1217411064842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178046.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 1217411064842 in words is "one trillion, two hundred seventeen billion, four hundred eleven million, sixty-four thousand, eight hundred forty-two".