642573536335 has 8 divisors (see below), whose sum is σ = 775348400736. Its totient is φ = 511218724320.

The previous prime is 642573536329. The next prime is 642573536351. The reversal of 642573536335 is 533635375246.

642573536335 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 not a de Polignac number, because 642573536335 - 2⁷ = 642573536207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355012099 + ... + 355013908.

It is an arithmetic number, because the mean of its divisors is an integer number (96918550092).

Almost surely, 2^642573536335 is an apocalyptic number.

642573536335 is a deficient number, since it is larger than the sum of its proper divisors (132774864401).

642573536335 is a wasteful number, since it uses less digits than its factorization.

642573536335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710026193.

The product of its digits is 20412000, while the sum is 52.

The spelling of 642573536335 in words is "six hundred forty-two billion, five hundred seventy-three million, five hundred thirty-six thousand, three hundred thirty-five".