6449974331 has 2 divisors, whose sum is σ = 6449974332. Its totient is φ = 6449974330.

The previous prime is 6449974313. The next prime is 6449974423. The reversal of 6449974331 is 1334799446.

Together with previous prime (6449974313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6449974331 is a prime.

It is a super-2 number, since 2×6449974331² = 83204337741117795122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6449974331.

It is not a weakly prime, because it can be changed into another prime (6449974831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224987165 + 3224987166.

It is an arithmetic number, because the mean of its divisors is an integer number (3224987166).

Almost surely, 2^6449974331 is an apocalyptic number.

6449974331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6449974331 is an equidigital number, since it uses as much as digits as its factorization.

6449974331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 50.

The square root of 6449974331 is about 80311.7322126724. The cubic root of 6449974331 is about 1861.4555157187.

The spelling of 6449974331 in words is "six billion, four hundred forty-nine million, nine hundred seventy-four thousand, three hundred thirty-one".