1392531773429 has 2 divisors, whose sum is σ = 1392531773430. Its totient is φ = 1392531773428.

The previous prime is 1392531773419. The next prime is 1392531773431. The reversal of 1392531773429 is 9243771352931.

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., 1307020562500 + 85511210929 = 1143250^2 + 292423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392531773429 - 2¹⁶ = 1392531707893 is a prime.

Together with 1392531773431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392531773419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696265886714 + 696265886715.

It is an arithmetic number, because the mean of its divisors is an integer number (696265886715).

Almost surely, 2^{1392531773429} is an apocalyptic number.

It is an amenable number.

1392531773429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392531773429 is an equidigital number, since it uses as much as digits as its factorization.

1392531773429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 56.

The spelling of 1392531773429 in words is "one trillion, three hundred ninety-two billion, five hundred thirty-one million, seven hundred seventy-three thousand, four hundred twenty-nine".