649221009032 has 36 divisors (see below), whose sum is σ = 1228644559935. Its totient is φ = 321610222080.

The previous prime is 649221009001. The next prime is 649221009089. The reversal of 649221009032 is 230900122946.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 221695955716 + 427525053316 = 470846^2 + 653854^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=569746.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 257523932 + ... + 257526452.

Almost surely, 2^649221009032 is an apocalyptic number.

It is an amenable number.

649221009032 is a deficient number, since it is larger than the sum of its proper divisors (579423550903).

649221009032 is an frugal number, since it uses more digits than its factorization.

649221009032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 2636 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 649221009032 in words is "six hundred forty-nine billion, two hundred twenty-one million, nine thousand, thirty-two".