1539328423789 has 8 divisors (see below), whose sum is σ = 1658130169472. Its totient is φ = 1420582659120.

The previous prime is 1539328423739. The next prime is 1539328423793. The reversal of 1539328423789 is 9873248239351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1539328423789 - 2²³ = 1539320035181 is a prime.

It is a super-2 number, since 2×1539328423789² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1539328423789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1539328423739) 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, 13938129 + ... + 14048134.

It is an arithmetic number, because the mean of its divisors is an integer number (207266271184).

Almost surely, 2^{1539328423789} is an apocalyptic number.

It is an amenable number.

1539328423789 is a deficient number, since it is larger than the sum of its proper divisors (118801745683).

1539328423789 is a wasteful number, since it uses less digits than its factorization.

1539328423789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27990507.

The product of its digits is 78382080, while the sum is 64.

The spelling of 1539328423789 in words is "one trillion, five hundred thirty-nine billion, three hundred twenty-eight million, four hundred twenty-three thousand, seven hundred eighty-nine".