1197372888866 has 16 divisors (see below), whose sum is σ = 2239242805440. Its totient is φ = 466508917680.

The previous prime is 1197372888827. The next prime is 1197372888871. The reversal of 1197372888866 is 6688882737911.

It is a junction number, because it is equal to n+sod(n) for n = 1197372888793 and 1197372888802.

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, 3887574161 + ... + 3887574468.

It is an arithmetic number, because the mean of its divisors is an integer number (139952675340).

Almost surely, 2^{1197372888866} is an apocalyptic number.

1197372888866 is a deficient number, since it is larger than the sum of its proper divisors (1041869916574).

1197372888866 is a wasteful number, since it uses less digits than its factorization.

1197372888866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775148649.

The product of its digits is 390168576, while the sum is 74.

The spelling of 1197372888866 in words is "one trillion, one hundred ninety-seven billion, three hundred seventy-two million, eight hundred eighty-eight thousand, eight hundred sixty-six".