642671675582 has 8 divisors (see below), whose sum is σ = 964492676616. Its totient is φ = 321174116712.

The previous prime is 642671675567. The next prime is 642671675609. The reversal of 642671675582 is 285576176246.

642671675582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 80855573 + ... + 80863520.

It is an arithmetic number, because the mean of its divisors is an integer number (120561584577).

Almost surely, 2^642671675582 is an apocalyptic number.

642671675582 is a deficient number, since it is larger than the sum of its proper divisors (321821001034).

642671675582 is a wasteful number, since it uses less digits than its factorization.

642671675582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161721082.

The product of its digits is 33868800, while the sum is 59.

The spelling of 642671675582 in words is "six hundred forty-two billion, six hundred seventy-one million, six hundred seventy-five thousand, five hundred eighty-two".