1096780975866 has 12 divisors (see below), whose sum is σ = 2376358781082. Its totient is φ = 365593658616.

The previous prime is 1096780975841. The next prime is 1096780975877. The reversal of 1096780975866 is 6685790876901.

It can be written as a sum of positive squares in only one way, i.e., 1077799025241 + 18981950625 = 1038171^2 + 137775^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1096780975794 and 1096780975803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30466138201 + ... + 30466138236.

Almost surely, 2^{1096780975866} is an apocalyptic number.

1096780975866 is an abundant number, since it is smaller than the sum of its proper divisors (1279577805216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1096780975866 is a wasteful number, since it uses less digits than its factorization.

1096780975866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60932276445 (or 60932276442 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 72.

The spelling of 1096780975866 in words is "one trillion, ninety-six billion, seven hundred eighty million, nine hundred seventy-five thousand, eight hundred sixty-six".