1378386787713 has 32 divisors (see below), whose sum is σ = 2025394990080. Its totient is φ = 828452439360.

The previous prime is 1378386787709. The next prime is 1378386787717. The reversal of 1378386787713 is 3177876838731.

It is an interprime number because it is at equal distance from previous prime (1378386787709) and next prime (1378386787717).

It is not a de Polignac number, because 1378386787713 - 2² = 1378386787709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1378386787717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38819898 + ... + 38855388.

It is an arithmetic number, because the mean of its divisors is an integer number (63293593440).

Almost surely, 2^{1378386787713} is an apocalyptic number.

1378386787713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1378386787713 is a deficient number, since it is larger than the sum of its proper divisors (647008202367).

1378386787713 is a wasteful number, since it uses less digits than its factorization.

1378386787713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58709.

The product of its digits is 199148544, while the sum is 69.

The spelling of 1378386787713 in words is "one trillion, three hundred seventy-eight billion, three hundred eighty-six million, seven hundred eighty-seven thousand, seven hundred thirteen".