946639839589 has 16 divisors (see below), whose sum is σ = 980305920000. Its totient is φ = 913174058160.

The previous prime is 946639839571. The next prime is 946639839623. The reversal of 946639839589 is 985938936649.

It is a cyclic number.

It is not a de Polignac number, because 946639839589 - 2⁵ = 946639839557 is a prime.

It is a super-2 number, since 2×946639839589² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946639839559) 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 15 ways as a sum of consecutive naturals, for example, 12198292 + ... + 12275650.

It is an arithmetic number, because the mean of its divisors is an integer number (61269120000).

Almost surely, 2^946639839589 is an apocalyptic number.

It is an amenable number.

946639839589 is a deficient number, since it is larger than the sum of its proper divisors (33666080411).

946639839589 is a wasteful number, since it uses less digits than its factorization.

946639839589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78648.

The product of its digits is 2720977920, while the sum is 79.

The spelling of 946639839589 in words is "nine hundred forty-six billion, six hundred thirty-nine million, eight hundred thirty-nine thousand, five hundred eighty-nine".