2641007647 has 4 divisors (see below), whose sum is σ = 2796361056. Its totient is φ = 2485654240.

The previous prime is 2641007623. The next prime is 2641007731. The reversal of 2641007647 is 7467001462.

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

It is a cyclic number.

It is not a de Polignac number, because 2641007647 - 2¹⁵ = 2640974879 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 (2641008647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77676679 + ... + 77676712.

It is an arithmetic number, because the mean of its divisors is an integer number (699090264).

Almost surely, 2^2641007647 is an apocalyptic number.

2641007647 is a deficient number, since it is larger than the sum of its proper divisors (155353409).

2641007647 is a wasteful number, since it uses less digits than its factorization.

2641007647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155353408.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 2641007647 is about 51390.7350307427. The cubic root of 2641007647 is about 1382.2604637169.

The spelling of 2641007647 in words is "two billion, six hundred forty-one million, seven thousand, six hundred forty-seven".