6405648029 has 16 divisors (see below), whose sum is σ = 7115337216. Its totient is φ = 5717751600.

The previous prime is 6405648023. The next prime is 6405648043. The reversal of 6405648029 is 9208465046.

It is not a de Polignac number, because 6405648029 - 2⁴ = 6405648013 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 (6405648023) 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, 215234 + ... + 243180.

It is an arithmetic number, because the mean of its divisors is an integer number (444708576).

Almost surely, 2^6405648029 is an apocalyptic number.

It is an amenable number.

6405648029 is a deficient number, since it is larger than the sum of its proper divisors (709689187).

6405648029 is a wasteful number, since it uses less digits than its factorization.

6405648029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28336.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 6405648029 is about 80035.2923965422. The cubic root of 6405648029 is about 1857.1815359504.

The spelling of 6405648029 in words is "six billion, four hundred five million, six hundred forty-eight thousand, twenty-nine".