12197693771428 has 24 divisors (see below), whose sum is σ = 23526573374304. Its totient is φ = 5487247430400.

The previous prime is 12197693771413. The next prime is 12197693771489. The reversal of 12197693771428 is 82417739679121.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428966418 + ... + 1428974953.

It is an arithmetic number, because the mean of its divisors is an integer number (980273890596).

Almost surely, 2^{12197693771428} is an apocalyptic number.

It is an amenable number.

12197693771428 is a deficient number, since it is larger than the sum of its proper divisors (11328879602876).

12197693771428 is a wasteful number, since it uses less digits than its factorization.

12197693771428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857941483 (or 2857941481 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 67.

The spelling of 12197693771428 in words is "twelve trillion, one hundred ninety-seven billion, six hundred ninety-three million, seven hundred seventy-one thousand, four hundred twenty-eight".