1384440252523 has 2 divisors, whose sum is σ = 1384440252524. Its totient is φ = 1384440252522.

The previous prime is 1384440252499. The next prime is 1384440252539. The reversal of 1384440252523 is 3252520444831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1384440252523 - 2²⁹ = 1383903381611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1384440252523.

It is not a weakly prime, because it can be changed into another prime (1384440232523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692220126261 + 692220126262.

It is an arithmetic number, because the mean of its divisors is an integer number (692220126262).

Almost surely, 2^{1384440252523} is an apocalyptic number.

1384440252523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384440252523 is an equidigital number, since it uses as much as digits as its factorization.

1384440252523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 1384440252523 in words is "one trillion, three hundred eighty-four billion, four hundred forty million, two hundred fifty-two thousand, five hundred twenty-three".