1366774444378 has 16 divisors (see below), whose sum is σ = 2400189269184. Its totient is φ = 571473635040.

The previous prime is 1366774444331. The next prime is 1366774444403. The reversal of 1366774444378 is 8734444776631.

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, 1190569500 + ... + 1190570647.

It is an arithmetic number, because the mean of its divisors is an integer number (150011829324).

Almost surely, 2^{1366774444378} is an apocalyptic number.

1366774444378 is a deficient number, since it is larger than the sum of its proper divisors (1033414824806).

1366774444378 is a wasteful number, since it uses less digits than its factorization.

1366774444378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381140197.

The product of its digits is 227598336, while the sum is 64.

The spelling of 1366774444378 in words is "one trillion, three hundred sixty-six billion, seven hundred seventy-four million, four hundred forty-four thousand, three hundred seventy-eight".