642853620295 has 8 divisors (see below), whose sum is σ = 771814161360. Its totient is φ = 514023018240.

The previous prime is 642853620289. The next prime is 642853620319. The reversal of 642853620295 is 592026358246.

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

It is not a de Polignac number, because 642853620295 - 2³ = 642853620287 is a prime.

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, 32473866 + ... + 32493655.

It is an arithmetic number, because the mean of its divisors is an integer number (96476770170).

Almost surely, 2^642853620295 is an apocalyptic number.

642853620295 is a deficient number, since it is larger than the sum of its proper divisors (128960541065).

642853620295 is a wasteful number, since it uses less digits than its factorization.

642853620295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64969505.

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 642853620295 in words is "six hundred forty-two billion, eight hundred fifty-three million, six hundred twenty thousand, two hundred ninety-five".