642460970067 has 8 divisors (see below), whose sum is σ = 978988144896. Its totient is φ = 367120554312.

The previous prime is 642460969999. The next prime is 642460970077. The reversal of 642460970067 is 760079064246.

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

It is not a de Polignac number, because 642460970067 - 2¹⁰ = 642460969043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642460970077) 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 7 ways as a sum of consecutive naturals, for example, 15296689743 + ... + 15296689784.

It is an arithmetic number, because the mean of its divisors is an integer number (122373518112).

Almost surely, 2^642460970067 is an apocalyptic number.

642460970067 is a deficient number, since it is larger than the sum of its proper divisors (336527174829).

642460970067 is a wasteful number, since it uses less digits than its factorization.

642460970067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30593379537.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 642460970067 in words is "six hundred forty-two billion, four hundred sixty million, nine hundred seventy thousand, sixty-seven".