1226517875868 has 12 divisors (see below), whose sum is σ = 2861875043720. Its totient is φ = 408839291952.

The previous prime is 1226517875837. The next prime is 1226517875879. The reversal of 1226517875868 is 8685787156221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1226517875799 and 1226517875808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51104911483 + ... + 51104911506.

Almost surely, 2^{1226517875868} is an apocalyptic number.

It is an amenable number.

1226517875868 is an abundant number, since it is smaller than the sum of its proper divisors (1635357167852).

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

1226517875868 is a wasteful number, since it uses less digits than its factorization.

1226517875868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102209822996 (or 102209822994 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 66.

The spelling of 1226517875868 in words is "one trillion, two hundred twenty-six billion, five hundred seventeen million, eight hundred seventy-five thousand, eight hundred sixty-eight".