1378534225156 has 36 divisors (see below), whose sum is σ = 2654282731660. Its totient is φ = 625992523200.

The previous prime is 1378534225151. The next prime is 1378534225177. The reversal of 1378534225156 is 6515224358731.

It can be written as a sum of positive squares in 2 ways, for example, as 1200483983556 + 178050241600 = 1095666^2 + 421960^2 .

It is not an unprimeable number, because it can be changed into a prime (1378534225151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 900651 + ... + 1888978.

Almost surely, 2^{1378534225156} is an apocalyptic number.

It is an amenable number.

1378534225156 is a deficient number, since it is larger than the sum of its proper divisors (1275748506504).

1378534225156 is a wasteful number, since it uses less digits than its factorization.

1378534225156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790676 (or 2790663 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 1378534225156 in words is "one trillion, three hundred seventy-eight billion, five hundred thirty-four million, two hundred twenty-five thousand, one hundred fifty-six".