1959128339 has 12 divisors (see below), whose sum is σ = 2378073744. Its totient is φ = 1606240944.

The previous prime is 1959128317. The next prime is 1959128357. The reversal of 1959128339 is 9338219591.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1959128339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1959128309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868052 + ... + 870305.

It is an arithmetic number, because the mean of its divisors is an integer number (198172812).

Almost surely, 2^1959128339 is an apocalyptic number.

1959128339 is a deficient number, since it is larger than the sum of its proper divisors (418945405).

1959128339 is a wasteful number, since it uses less digits than its factorization.

1959128339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738394 (or 1738387 counting only the distinct ones).

The product of its digits is 524880, while the sum is 50.

The square root of 1959128339 is about 44262.0417400734. The cubic root of 1959128339 is about 1251.2794023769.

The spelling of 1959128339 in words is "one billion, nine hundred fifty-nine million, one hundred twenty-eight thousand, three hundred thirty-nine".