1278067584112 has 40 divisors (see below), whose sum is σ = 2717943004800. Its totient is φ = 577375750080.

The previous prime is 1278067584089. The next prime is 1278067584161. The reversal of 1278067584112 is 2114857608721.

It is a self number, because there is not a number n which added to its sum of digits gives 1278067584112.

It is a congruent number.

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, 22246612 + ... + 22303987.

It is an arithmetic number, because the mean of its divisors is an integer number (67948575120).

Almost surely, 2^{1278067584112} is an apocalyptic number.

It is an amenable number.

1278067584112 is an abundant number, since it is smaller than the sum of its proper divisors (1439875420688).

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

1278067584112 is a wasteful number, since it uses less digits than its factorization.

1278067584112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44550781 (or 44550775 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 1278067584112 in words is "one trillion, two hundred seventy-eight billion, sixty-seven million, five hundred eighty-four thousand, one hundred twelve".