686370552676 has 12 divisors (see below), whose sum is σ = 1216352878720. Its totient is φ = 338841158760.

The previous prime is 686370552661. The next prime is 686370552677. The reversal of 686370552676 is 676255073686.

It is a super-2 number, since 2×686370552676² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (686370552677) 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, 1086029040 + ... + 1086029671.

Almost surely, 2^686370552676 is an apocalyptic number.

It is an amenable number.

686370552676 is a deficient number, since it is larger than the sum of its proper divisors (529982326044).

686370552676 is a wasteful number, since it uses less digits than its factorization.

686370552676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172058794 (or 2172058792 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 686370552676 in words is "six hundred eighty-six billion, three hundred seventy million, five hundred fifty-two thousand, six hundred seventy-six".