686276538836 has 12 divisors (see below), whose sum is σ = 1372553077728. Its totient is φ = 294118516632.

The previous prime is 686276538833. The next prime is 686276538853. The reversal of 686276538836 is 638835672686.

686276538836 is an admirable number.

It is a hoax number, since the sum of its digits (68) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686276538833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254938166 + ... + 12254938221.

It is an arithmetic number, because the mean of its divisors is an integer number (114379423144).

Almost surely, 2^686276538836 is an apocalyptic number.

It is an amenable number.

686276538836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686276538836 is a wasteful number, since it uses less digits than its factorization.

686276538836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24509876398 (or 24509876396 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 68.

The spelling of 686276538836 in words is "six hundred eighty-six billion, two hundred seventy-six million, five hundred thirty-eight thousand, eight hundred thirty-six".