649054812801 has 8 divisors (see below), whose sum is σ = 867974389984. Its totient is φ = 431419222080.

The previous prime is 649054812797. The next prime is 649054812817. The reversal of 649054812801 is 108218450946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649054812801 - 2² = 649054812797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649054812851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320995435 + ... + 320997456.

It is an arithmetic number, because the mean of its divisors is an integer number (108496798748).

Almost surely, 2^649054812801 is an apocalyptic number.

It is an amenable number.

649054812801 is a deficient number, since it is larger than the sum of its proper divisors (218919577183).

649054812801 is a wasteful number, since it uses less digits than its factorization.

649054812801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641993231.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 649054812801 in words is "six hundred forty-nine billion, fifty-four million, eight hundred twelve thousand, eight hundred one".