1386621835969 has 16 divisors (see below), whose sum is σ = 1441129110336. Its totient is φ = 1333065384000.

The previous prime is 1386621835931. The next prime is 1386621835979. The reversal of 1386621835969 is 9695381266831.

It is a cyclic number.

It is not a de Polignac number, because 1386621835969 - 2²¹ = 1386619738817 is a prime.

It is a super-2 number, since 2×1386621835969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386621835979) 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 15 ways as a sum of consecutive naturals, for example, 1457014 + ... + 2212720.

It is an arithmetic number, because the mean of its divisors is an integer number (90070569396).

Almost surely, 2^{1386621835969} is an apocalyptic number.

It is an amenable number.

1386621835969 is a deficient number, since it is larger than the sum of its proper divisors (54507274367).

1386621835969 is a wasteful number, since it uses less digits than its factorization.

1386621835969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756336.

The product of its digits is 100776960, while the sum is 67.

The spelling of 1386621835969 in words is "one trillion, three hundred eighty-six billion, six hundred twenty-one million, eight hundred thirty-five thousand, nine hundred sixty-nine".