1393493329539 has 8 divisors (see below), whose sum is σ = 2064434562320. Its totient is φ = 928995553008.

The previous prime is 1393493329493. The next prime is 1393493329541. The reversal of 1393493329539 is 9359233943931.

1393493329539 is a `hidden beast` number, since 1 + 3 + 9 + 3 + 4 + 93 + 3 + 2 + 9 + 539 = 666.

It is not a de Polignac number, because 1393493329539 - 2⁹ = 1393493329027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393493329549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25805432002 + ... + 25805432055.

It is an arithmetic number, because the mean of its divisors is an integer number (258054320290).

Almost surely, 2^{1393493329539} is an apocalyptic number.

1393493329539 is a deficient number, since it is larger than the sum of its proper divisors (670941232781).

1393493329539 is an equidigital number, since it uses as much as digits as its factorization.

1393493329539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51610864066 (or 51610864060 counting only the distinct ones).

The product of its digits is 63772920, while the sum is 63.

The spelling of 1393493329539 in words is "one trillion, three hundred ninety-three billion, four hundred ninety-three million, three hundred twenty-nine thousand, five hundred thirty-nine".