1386378212547 has 8 divisors (see below), whose sum is σ = 1928874034944. Its totient is φ = 884067265928.

The previous prime is 1386378212533. The next prime is 1386378212617. The reversal of 1386378212547 is 7452128736831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1386378212547 - 2⁸ = 1386378212291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386378212647) 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, 10046218863 + ... + 10046219000.

It is an arithmetic number, because the mean of its divisors is an integer number (241109254368).

Almost surely, 2^{1386378212547} is an apocalyptic number.

1386378212547 is a deficient number, since it is larger than the sum of its proper divisors (542495822397).

1386378212547 is a wasteful number, since it uses less digits than its factorization.

1386378212547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20092437889.

The product of its digits is 13547520, while the sum is 57.

The spelling of 1386378212547 in words is "one trillion, three hundred eighty-six billion, three hundred seventy-eight million, two hundred twelve thousand, five hundred forty-seven".