685962195883 has 4 divisors (see below), whose sum is σ = 688126114800. Its totient is φ = 683798276968.

The previous prime is 685962195881. The next prime is 685962195931. The reversal of 685962195883 is 388591269586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 685962195883 - 2¹ = 685962195881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685962195881) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1081958983 + ... + 1081959616.

It is an arithmetic number, because the mean of its divisors is an integer number (172031528700).

Almost surely, 2^685962195883 is an apocalyptic number.

685962195883 is a deficient number, since it is larger than the sum of its proper divisors (2163918917).

685962195883 is a wasteful number, since it uses less digits than its factorization.

685962195883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163918916.

The product of its digits is 223948800, while the sum is 70.

The spelling of 685962195883 in words is "six hundred eighty-five billion, nine hundred sixty-two million, one hundred ninety-five thousand, eight hundred eighty-three".