497857049870 has 32 divisors (see below), whose sum is σ = 936520384320. Its totient is φ = 190196202240.

The previous prime is 497857049869. The next prime is 497857049887. The reversal of 497857049870 is 78940758794.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 497857049870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485335 + ... + 1789394.

It is an arithmetic number, because the mean of its divisors is an integer number (29266262010).

Almost surely, 2^497857049870 is an apocalyptic number.

497857049870 is a deficient number, since it is larger than the sum of its proper divisors (438663334450).

497857049870 is a wasteful number, since it uses less digits than its factorization.

497857049870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275420.

The product of its (nonzero) digits is 142248960, while the sum is 68.

The spelling of 497857049870 in words is "four hundred ninety-seven billion, eight hundred fifty-seven million, forty-nine thousand, eight hundred seventy".