12198097603978 has 32 divisors (see below), whose sum is σ = 21953308849920. Its totient is φ = 5009187524160.

The previous prime is 12198097603963. The next prime is 12198097604029. The reversal of 12198097603978 is 87930679089121.

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, 453717313 + ... + 453744196.

It is an arithmetic number, because the mean of its divisors is an integer number (686040901560).

Almost surely, 2^{12198097603978} is an apocalyptic number.

12198097603978 is a deficient number, since it is larger than the sum of its proper divisors (9755211245942).

12198097603978 is a wasteful number, since it uses less digits than its factorization.

12198097603978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907461582.

The product of its (nonzero) digits is 82301184, while the sum is 70.

The spelling of 12198097603978 in words is "twelve trillion, one hundred ninety-eight billion, ninety-seven million, six hundred three thousand, nine hundred seventy-eight".