1438478080377 has 8 divisors (see below), whose sum is σ = 2065506987264. Its totient is φ = 885217280208.

The previous prime is 1438478080357. The next prime is 1438478080399. The reversal of 1438478080377 is 7730808748341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1438478080377 - 2¹² = 1438478076281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438478080377.

It is not an unprimeable number, because it can be changed into a prime (1438478080327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18442026633 + ... + 18442026710.

It is an arithmetic number, because the mean of its divisors is an integer number (258188373408).

Almost surely, 2^{1438478080377} is an apocalyptic number.

It is an amenable number.

1438478080377 is a deficient number, since it is larger than the sum of its proper divisors (627028906887).

1438478080377 is a wasteful number, since it uses less digits than its factorization.

1438478080377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36884053359.

The product of its (nonzero) digits is 25288704, while the sum is 60.

The spelling of 1438478080377 in words is "one trillion, four hundred thirty-eight billion, four hundred seventy-eight million, eighty thousand, three hundred seventy-seven".