1386695877378 has 16 divisors (see below), whose sum is σ = 3169590576960. Its totient is φ = 396198822096.

The previous prime is 1386695877311. The next prime is 1386695877389. The reversal of 1386695877378 is 8737785966831.

It is a happy 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, 16508284213 + ... + 16508284296.

It is an arithmetic number, because the mean of its divisors is an integer number (198099411060).

Almost surely, 2^{1386695877378} is an apocalyptic number.

1386695877378 is an abundant number, since it is smaller than the sum of its proper divisors (1782894699582).

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

1386695877378 is a wasteful number, since it uses less digits than its factorization.

1386695877378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33016568521.

The product of its digits is 2560481280, while the sum is 78.

The spelling of 1386695877378 in words is "one trillion, three hundred eighty-six billion, six hundred ninety-five million, eight hundred seventy-seven thousand, three hundred seventy-eight".