1380138143478 has 16 divisors (see below), whose sum is σ = 2795216494080. Its totient is φ = 454222679976.

The previous prime is 1380138143459. The next prime is 1380138143513. The reversal of 1380138143478 is 8743418310831.

It is a self number, because there is not a number n which added to its sum of digits gives 1380138143478.

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, 1455841450 + ... + 1455842397.

It is an arithmetic number, because the mean of its divisors is an integer number (174701030880).

Almost surely, 2^{1380138143478} is an apocalyptic number.

1380138143478 is an abundant number, since it is smaller than the sum of its proper divisors (1415078350602).

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

1380138143478 is a wasteful number, since it uses less digits than its factorization.

1380138143478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911683931.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 1380138143478 in words is "one trillion, three hundred eighty billion, one hundred thirty-eight million, one hundred forty-three thousand, four hundred seventy-eight".