2685509474968 has 32 divisors (see below), whose sum is σ = 5075201363760. Its totient is φ = 1332128237440.

The previous prime is 2685509474903. The next prime is 2685509474987. The reversal of 2685509474968 is 8694749055862.

It is a super-2 number, since 2×2685509474968² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2685509474968.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3367530 + ... + 4087942.

Almost surely, 2^{2685509474968} is an apocalyptic number.

It is an amenable number.

2685509474968 is a deficient number, since it is larger than the sum of its proper divisors (2389691888792).

2685509474968 is a wasteful number, since it uses less digits than its factorization.

2685509474968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724107 (or 724103 counting only the distinct ones).

The product of its (nonzero) digits is 1045094400, while the sum is 73.

The spelling of 2685509474968 in words is "two trillion, six hundred eighty-five billion, five hundred nine million, four hundred seventy-four thousand, nine hundred sixty-eight".