642264662602 has 8 divisors (see below), whose sum is σ = 975591892800. Its totient is φ = 317067365004.

The previous prime is 642264662597. The next prime is 642264662609. The reversal of 642264662602 is 206266462246.

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

It is not an unprimeable number, because it can be changed into a prime (642264662609) 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 3 ways as a sum of consecutive naturals, for example, 2032482952 + ... + 2032483267.

It is an arithmetic number, because the mean of its divisors is an integer number (121948986600).

Almost surely, 2^642264662602 is an apocalyptic number.

642264662602 is a deficient number, since it is larger than the sum of its proper divisors (333327230198).

642264662602 is a wasteful number, since it uses less digits than its factorization.

642264662602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064966300.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 642264662602 in words is "six hundred forty-two billion, two hundred sixty-four million, six hundred sixty-two thousand, six hundred two".