1378873277852 has 48 divisors (see below), whose sum is σ = 2816946091008. Its totient is φ = 578264756160.

The previous prime is 1378873277779. The next prime is 1378873277921. The reversal of 1378873277852 is 2587723788731.

It is a happy number.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7184078 + ... + 7373514.

It is an arithmetic number, because the mean of its divisors is an integer number (58686376896).

Almost surely, 2^{1378873277852} is an apocalyptic number.

It is an amenable number.

1378873277852 is an abundant number, since it is smaller than the sum of its proper divisors (1438072813156).

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

1378873277852 is a wasteful number, since it uses less digits than its factorization.

1378873277852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195026 (or 195024 counting only the distinct ones).

The product of its digits is 221276160, while the sum is 68.

The spelling of 1378873277852 in words is "one trillion, three hundred seventy-eight billion, eight hundred seventy-three million, two hundred seventy-seven thousand, eight hundred fifty-two".