1392531773389 has 2 divisors, whose sum is σ = 1392531773390. Its totient is φ = 1392531773388.

The previous prime is 1392531773279. The next prime is 1392531773419. The reversal of 1392531773389 is 9833771352931.

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., 1175235950889 + 217295822500 = 1084083^2 + 466150^2 .

It is an emirp because it is prime and its reverse (9833771352931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1392531773389 - 2¹¹ = 1392531771341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392531779389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696265886694 + 696265886695.

It is an arithmetic number, because the mean of its divisors is an integer number (696265886695).

Almost surely, 2^{1392531773389} is an apocalyptic number.

It is an amenable number.

1392531773389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392531773389 is an equidigital number, since it uses as much as digits as its factorization.

1392531773389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 61.

The spelling of 1392531773389 in words is "one trillion, three hundred ninety-two billion, five hundred thirty-one million, seven hundred seventy-three thousand, three hundred eighty-nine".