6433946983 has 8 divisors (see below), whose sum is σ = 6748431552. Its totient is φ = 6126862176.

The previous prime is 6433946957. The next prime is 6433947011. The reversal of 6433946983 is 3896493346.

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 6433946983 - 2⁵ = 6433946951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6433946683) 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, 1848160 + ... + 1851637.

It is an arithmetic number, because the mean of its divisors is an integer number (843553944).

Almost surely, 2^6433946983 is an apocalyptic number.

6433946983 is a deficient number, since it is larger than the sum of its proper divisors (314484569).

6433946983 is a wasteful number, since it uses less digits than its factorization.

6433946983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699881.

The product of its digits is 10077696, while the sum is 55.

The square root of 6433946983 is about 80211.8880403647. Note that the first 3 decimals coincide. The cubic root of 6433946983 is about 1859.9124118581.

The spelling of 6433946983 in words is "six billion, four hundred thirty-three million, nine hundred forty-six thousand, nine hundred eighty-three".