6642403485 has 8 divisors (see below), whose sum is σ = 10627845600. Its totient is φ = 3542615184.

The previous prime is 6642403463. The next prime is 6642403507. The reversal of 6642403485 is 5843042466.

It is an interprime number because it is at equal distance from previous prime (6642403463) and next prime (6642403507).

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

It is not a de Polignac number, because 6642403485 - 2¹⁹ = 6641879197 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 221413435 + ... + 221413464.

It is an arithmetic number, because the mean of its divisors is an integer number (1328480700).

Almost surely, 2^6642403485 is an apocalyptic number.

It is an amenable number.

6642403485 is a deficient number, since it is larger than the sum of its proper divisors (3985442115).

6642403485 is a wasteful number, since it uses less digits than its factorization.

6642403485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442826907.

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 6642403485 is about 81500.9416203273. The cubic root of 6642403485 is about 1879.7860293865.

The spelling of 6642403485 in words is "six billion, six hundred forty-two million, four hundred three thousand, four hundred eighty-five".