649469448347 has 4 divisors (see below), whose sum is σ = 663287947296. Its totient is φ = 635650949400.

The previous prime is 649469448311. The next prime is 649469448361. The reversal of 649469448347 is 743844964946.

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 649469448347 - 2⁸ = 649469448091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649469448367) 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, 6909249404 + ... + 6909249497.

It is an arithmetic number, because the mean of its divisors is an integer number (165821986824).

Almost surely, 2^649469448347 is an apocalyptic number.

649469448347 is a deficient number, since it is larger than the sum of its proper divisors (13818498949).

649469448347 is a wasteful number, since it uses less digits than its factorization.

649469448347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13818498948.

The product of its digits is 501645312, while the sum is 68.

The spelling of 649469448347 in words is "six hundred forty-nine billion, four hundred sixty-nine million, four hundred forty-eight thousand, three hundred forty-seven".