6464646033 has 16 divisors (see below), whose sum is σ = 8691277056. Its totient is φ = 4273935120.

The previous prime is 6464646029. The next prime is 6464646047. The reversal of 6464646033 is 3306464646.

It is not a de Polignac number, because 6464646033 - 2² = 6464646029 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6464642033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672366 + ... + 681912.

It is an arithmetic number, because the mean of its divisors is an integer number (543204816).

Almost surely, 2^6464646033 is an apocalyptic number.

It is an amenable number.

6464646033 is a deficient number, since it is larger than the sum of its proper divisors (2226631023).

6464646033 is a wasteful number, since it uses less digits than its factorization.

6464646033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404.

The product of its (nonzero) digits is 746496, while the sum is 42.

The square root of 6464646033 is about 80403.0225364694. The cubic root of 6464646033 is about 1862.8658592601.

The spelling of 6464646033 in words is "six billion, four hundred sixty-four million, six hundred forty-six thousand, thirty-three".