6439017942 has 32 divisors (see below), whose sum is σ = 16353062400. Its totient is φ = 1839719304.

The previous prime is 6439017941. The next prime is 6439017943. The reversal of 6439017942 is 2497109346.

It is a happy number.

6439017942 is a `hidden beast` number, since 6 + 439 + 0 + 179 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (6439017941) and next prime (6439017943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6439017941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8516842 + ... + 8517597.

It is an arithmetic number, because the mean of its divisors is an integer number (511033200).

Almost surely, 2^6439017942 is an apocalyptic number.

6439017942 is an abundant number, since it is smaller than the sum of its proper divisors (9914044458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6439017942 is a wasteful number, since it uses less digits than its factorization.

6439017942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17034457 (or 17034451 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6439017942 is about 80243.4915865455. The cubic root of 6439017942 is about 1860.4009177394.

The spelling of 6439017942 in words is "six billion, four hundred thirty-nine million, seventeen thousand, nine hundred forty-two".