642464531006 has 8 divisors (see below), whose sum is σ = 964068744384. Its totient is φ = 321108282880.

The previous prime is 642464530871. The next prime is 642464531039. The reversal of 642464531006 is 600135464246.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61984835 + ... + 61995198.

It is an arithmetic number, because the mean of its divisors is an integer number (120508593048).

Almost surely, 2^642464531006 is an apocalyptic number.

642464531006 is a deficient number, since it is larger than the sum of its proper divisors (321604213378).

642464531006 is a wasteful number, since it uses less digits than its factorization.

642464531006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123982626.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 642464531006 in words is "six hundred forty-two billion, four hundred sixty-four million, five hundred thirty-one thousand, six".