6327478997 has 4 divisors (see below), whose sum is σ = 7231404576. Its totient is φ = 5423553420.

The previous prime is 6327478991. The next prime is 6327479017. The reversal of 6327478997 is 7998747236.

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 6327478997 - 2⁴ = 6327478981 is a prime.

It is a super-2 number, since 2×6327478997² = 80073980914952252018, which 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 (6327478991) 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, 451962779 + ... + 451962792.

It is an arithmetic number, because the mean of its divisors is an integer number (1807851144).

Almost surely, 2^6327478997 is an apocalyptic number.

It is an amenable number.

6327478997 is a deficient number, since it is larger than the sum of its proper divisors (903925579).

6327478997 is an equidigital number, since it uses as much as digits as its factorization.

6327478997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903925578.

The product of its digits is 32006016, while the sum is 62.

The square root of 6327478997 is about 79545.4523967272. The cubic root of 6327478997 is about 1849.5961131458.

The spelling of 6327478997 in words is "six billion, three hundred twenty-seven million, four hundred seventy-eight thousand, nine hundred ninety-seven".