1378106662806 has 24 divisors (see below), whose sum is σ = 2985961613544. Its totient is φ = 459359065440.

The previous prime is 1378106662781. The next prime is 1378106662813. The reversal of 1378106662806 is 6082666018731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72946 + ... + 1661786.

It is an arithmetic number, because the mean of its divisors is an integer number (124415067231).

Almost surely, 2^{1378106662806} is an apocalyptic number.

1378106662806 is an abundant number, since it is smaller than the sum of its proper divisors (1607854950738).

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

1378106662806 is a wasteful number, since it uses less digits than its factorization.

1378106662806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637036 (or 1637033 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 1378106662806 in words is "one trillion, three hundred seventy-eight billion, one hundred six million, six hundred sixty-two thousand, eight hundred six".