6430908973 has 4 divisors (see below), whose sum is σ = 6508389888. Its totient is φ = 6353428060.

The previous prime is 6430908947. The next prime is 6430909003. The reversal of 6430908973 is 3798090346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6430908973 - 2¹³ = 6430900781 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430909973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38740333 + ... + 38740498.

It is an arithmetic number, because the mean of its divisors is an integer number (1627097472).

Almost surely, 2^6430908973 is an apocalyptic number.

It is an amenable number.

6430908973 is a deficient number, since it is larger than the sum of its proper divisors (77480915).

6430908973 is an equidigital number, since it uses as much as digits as its factorization.

6430908973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77480914.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 6430908973 is about 80192.9483994696. The cubic root of 6430908973 is about 1859.6196251698.

The spelling of 6430908973 in words is "six billion, four hundred thirty million, nine hundred eight thousand, nine hundred seventy-three".