1217398936930 has 16 divisors (see below), whose sum is σ = 2390528821824. Its totient is φ = 442690522480.

The previous prime is 1217398936909. The next prime is 1217398936967. The reversal of 1217398936930 is 396398937121.

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 7 ways as a sum of consecutive naturals, for example, 5533631422 + ... + 5533631641.

It is an arithmetic number, because the mean of its divisors is an integer number (149408051364).

Almost surely, 2^{1217398936930} is an apocalyptic number.

1217398936930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1217398936930 is a deficient number, since it is larger than the sum of its proper divisors (1173129884894).

1217398936930 is a wasteful number, since it uses less digits than its factorization.

1217398936930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11067263081.

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 1217398936930 in words is "one trillion, two hundred seventeen billion, three hundred ninety-eight million, nine hundred thirty-six thousand, nine hundred thirty".