6642464902 has 8 divisors (see below), whose sum is σ = 9964127376. Its totient is φ = 3321089112.

The previous prime is 6642464897. The next prime is 6642464903. The reversal of 6642464902 is 2094642466.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642464903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988 + ... + 115264.

It is an arithmetic number, because the mean of its divisors is an integer number (1245515922).

Almost surely, 2^6642464902 is an apocalyptic number.

6642464902 is a deficient number, since it is larger than the sum of its proper divisors (3321662474).

6642464902 is a wasteful number, since it uses less digits than its factorization.

6642464902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143342.

The product of its (nonzero) digits is 497664, while the sum is 43.

The square root of 6642464902 is about 81501.3184065141. The cubic root of 6642464902 is about 1879.7918229954.

The spelling of 6642464902 in words is "six billion, six hundred forty-two million, four hundred sixty-four thousand, nine hundred two".