1382485877749 has 2 divisors, whose sum is σ = 1382485877750. Its totient is φ = 1382485877748.

The previous prime is 1382485877699. The next prime is 1382485877777. The reversal of 1382485877749 is 9477785842831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1335279624849 + 47206252900 = 1155543^2 + 217270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1382485877749 is a prime.

It is a super-2 number, since 2×1382485877749² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1382485877779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691242938874 + 691242938875.

It is an arithmetic number, because the mean of its divisors is an integer number (691242938875).

Almost surely, 2^{1382485877749} is an apocalyptic number.

It is an amenable number.

1382485877749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382485877749 is an equidigital number, since it uses as much as digits as its factorization.

1382485877749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 758661120, while the sum is 73.

The spelling of 1382485877749 in words is "one trillion, three hundred eighty-two billion, four hundred eighty-five million, eight hundred seventy-seven thousand, seven hundred forty-nine".