6405653652 has 48 divisors (see below), whose sum is σ = 15941318400. Its totient is φ = 1994939392.

The previous prime is 6405653651. The next prime is 6405653677. The reversal of 6405653652 is 2563565046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405653651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86652 + ... + 142547.

It is an arithmetic number, because the mean of its divisors is an integer number (332110800).

Almost surely, 2^6405653652 is an apocalyptic number.

It is an amenable number.

6405653652 is an abundant number, since it is smaller than the sum of its proper divisors (9535664748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6405653652 is a wasteful number, since it uses less digits than its factorization.

6405653652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229360 (or 229358 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The square root of 6405653652 is about 80035.3275247875. The cubic root of 6405653652 is about 1857.1820793734.

The spelling of 6405653652 in words is "six billion, four hundred five million, six hundred fifty-three thousand, six hundred fifty-two".