670240735208 has 64 divisors (see below), whose sum is σ = 1382102507520. Its totient is φ = 302177131200.

The previous prime is 670240735201. The next prime is 670240735231. The reversal of 670240735208 is 802537042076.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (670240735201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74774135 + ... + 74783097.

It is an arithmetic number, because the mean of its divisors is an integer number (21595351680).

Almost surely, 2^670240735208 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 670240735208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691051253760).

670240735208 is an abundant number, since it is smaller than the sum of its proper divisors (711861772312).

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

670240735208 is a wasteful number, since it uses less digits than its factorization.

670240735208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15798 (or 15794 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 670240735208 in words is "six hundred seventy billion, two hundred forty million, seven hundred thirty-five thousand, two hundred eight".