6449999967 has 6 divisors (see below), whose sum is σ = 9316666632. Its totient is φ = 4299999972.

The previous prime is 6449999953. The next prime is 6449999981. The reversal of 6449999967 is 7699999446.

6449999967 is a `hidden beast` number, since 6 + 449 + 9 + 99 + 96 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (6449999953) and next prime (6449999981).

It is not a de Polignac number, because 6449999967 - 2⁷ = 6449999839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6449999895 and 6449999904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449999987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358333323 + ... + 358333340.

It is an arithmetic number, because the mean of its divisors is an integer number (1552777772).

Almost surely, 2^6449999967 is an apocalyptic number.

6449999967 is a deficient number, since it is larger than the sum of its proper divisors (2866666665).

6449999967 is a wasteful number, since it uses less digits than its factorization.

6449999967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716666669 (or 716666666 counting only the distinct ones).

The product of its digits is 238085568, while the sum is 72.

The square root of 6449999967 is about 80311.8918155960. The cubic root of 6449999967 is about 1861.4579818893.

The spelling of 6449999967 in words is "six billion, four hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred sixty-seven".