6649582963207 has 4 divisors (see below), whose sum is σ = 6656560490880. Its totient is φ = 6642605435536.

The previous prime is 6649582963159. The next prime is 6649582963217. The reversal of 6649582963207 is 7023692859466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6649582963207 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 (6649582963217) 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, 3488762407 + ... + 3488764312.

It is an arithmetic number, because the mean of its divisors is an integer number (1664140122720).

Almost surely, 2^{6649582963207} is an apocalyptic number.

6649582963207 is a deficient number, since it is larger than the sum of its proper divisors (6977527673).

6649582963207 is an equidigital number, since it uses as much as digits as its factorization.

6649582963207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977527672.

The product of its (nonzero) digits is 235146240, while the sum is 67.

The spelling of 6649582963207 in words is "six trillion, six hundred forty-nine billion, five hundred eighty-two million, nine hundred sixty-three thousand, two hundred seven".