670406477208 has 192 divisors, whose sum is σ = 1938904617600. Its totient is φ = 192503900160.

The previous prime is 670406477207. The next prime is 670406477231. The reversal of 670406477208 is 802774604076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670406477207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5098368 + ... + 5228208.

It is an arithmetic number, because the mean of its divisors is an integer number (10098461550).

Almost surely, 2^670406477208 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 670406477208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969452308800).

670406477208 is an abundant number, since it is smaller than the sum of its proper divisors (1268498140392).

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

670406477208 is a wasteful number, since it uses less digits than its factorization.

670406477208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129962 (or 129945 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 670406477208 in words is "six hundred seventy billion, four hundred six million, four hundred seventy-seven thousand, two hundred eight".