686070212912 has 20 divisors (see below), whose sum is σ = 1519155471696. Its totient is φ = 294030091200.

The previous prime is 686070212911. The next prime is 686070212917. The reversal of 686070212912 is 219212070686.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (686070212911) 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, 3062813339 + ... + 3062813562.

Almost surely, 2^686070212912 is an apocalyptic number.

It is an amenable number.

686070212912 is an abundant number, since it is smaller than the sum of its proper divisors (833085258784).

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

686070212912 is a wasteful number, since it uses less digits than its factorization.

686070212912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125626916 (or 6125626910 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 686070212912 in words is "six hundred eighty-six billion, seventy million, two hundred twelve thousand, nine hundred twelve".