670781628488 has 64 divisors (see below), whose sum is σ = 1306259136000. Its totient is φ = 322580966400.

The previous prime is 670781628403. The next prime is 670781628497. The reversal of 670781628488 is 884826187076.

It is a super-2 number, since 2×670781628488² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95563043 + ... + 95570061.

It is an arithmetic number, because the mean of its divisors is an integer number (20410299000).

Almost surely, 2^670781628488 is an apocalyptic number.

It is an amenable number.

670781628488 is a deficient number, since it is larger than the sum of its proper divisors (635477507512).

670781628488 is a wasteful number, since it uses less digits than its factorization.

670781628488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 65.

The spelling of 670781628488 in words is "six hundred seventy billion, seven hundred eighty-one million, six hundred twenty-eight thousand, four hundred eighty-eight".