670852821912 has 512 divisors, whose sum is σ = 2194698240000. Its totient is φ = 166126528512.

The previous prime is 670852821911. The next prime is 670852821943. The reversal of 670852821912 is 219128258076.

670852821912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670852821911) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 532845139 + ... + 532846397.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520000).

Almost surely, 2^670852821912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670852821912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097349120000).

670852821912 is an abundant number, since it is smaller than the sum of its proper divisors (1523845418088).

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

670852821912 is a wasteful number, since it uses less digits than its factorization.

670852821912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 670852821912 in words is "six hundred seventy billion, eight hundred fifty-two million, eight hundred twenty-one thousand, nine hundred twelve".