1382412478817 has 2 divisors, whose sum is σ = 1382412478818. Its totient is φ = 1382412478816.

The previous prime is 1382412478813. The next prime is 1382412478897. The reversal of 1382412478817 is 7188742142831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747332586256 + 635079892561 = 864484^2 + 796919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382412478817 - 2² = 1382412478813 is a prime.

It is a super-2 number, since 2×1382412478817² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1382412478813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691206239408 + 691206239409.

It is an arithmetic number, because the mean of its divisors is an integer number (691206239409).

Almost surely, 2^{1382412478817} is an apocalyptic number.

It is an amenable number.

1382412478817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382412478817 is an equidigital number, since it uses as much as digits as its factorization.

1382412478817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4816896, while the sum is 56.

The spelling of 1382412478817 in words is "one trillion, three hundred eighty-two billion, four hundred twelve million, four hundred seventy-eight thousand, eight hundred seventeen".