1370478398389 has 2 divisors, whose sum is σ = 1370478398390. Its totient is φ = 1370478398388.

The previous prime is 1370478398327. The next prime is 1370478398407. The reversal of 1370478398389 is 9838938740731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1031006698225 + 339471700164 = 1015385^2 + 582642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1370478398389 is a prime.

It is a super-2 number, since 2×1370478398389² (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 (1370478398309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685239199194 + 685239199195.

It is an arithmetic number, because the mean of its divisors is an integer number (685239199195).

Almost surely, 2^{1370478398389} is an apocalyptic number.

It is an amenable number.

1370478398389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370478398389 is an equidigital number, since it uses as much as digits as its factorization.

1370478398389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 1370478398389 in words is "one trillion, three hundred seventy billion, four hundred seventy-eight million, three hundred ninety-eight thousand, three hundred eighty-nine".