1394289089279 has 4 divisors (see below), whose sum is σ = 1394949578880. Its totient is φ = 1393628599680.

The previous prime is 1394289089269. The next prime is 1394289089299. The reversal of 1394289089279 is 9729809824931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1394289089279 - 2²⁴ = 1394272312063 is a prime.

It is a super-5 number, since 5×1394289089279⁵ (a number of 62 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394289089269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330241634 + ... + 330245855.

It is an arithmetic number, because the mean of its divisors is an integer number (348737394720).

Almost surely, 2^{1394289089279} is an apocalyptic number.

1394289089279 is a deficient number, since it is larger than the sum of its proper divisors (660489601).

1394289089279 is an equidigital number, since it uses as much as digits as its factorization.

1394289089279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660489600.

The product of its (nonzero) digits is 141087744, while the sum is 71.

The spelling of 1394289089279 in words is "one trillion, three hundred ninety-four billion, two hundred eighty-nine million, eighty-nine thousand, two hundred seventy-nine".