670637076444 has 18 divisors (see below), whose sum is σ = 1695221498880. Its totient is φ = 223545692136.

The previous prime is 670637076433. The next prime is 670637076451. The reversal of 670637076444 is 444670736076.

670637076444 is a `hidden beast` number, since 6 + 7 + 0 + 63 + 70 + 76 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9314403804 + ... + 9314403875.

It is an arithmetic number, because the mean of its divisors is an integer number (94178972160).

Almost surely, 2^670637076444 is an apocalyptic number.

It is an amenable number.

670637076444 is an abundant number, since it is smaller than the sum of its proper divisors (1024584422436).

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

670637076444 is a wasteful number, since it uses less digits than its factorization.

670637076444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18628807689 (or 18628807684 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 54.

The spelling of 670637076444 in words is "six hundred seventy billion, six hundred thirty-seven million, seventy-six thousand, four hundred forty-four".