1680627670 has 8 divisors (see below), whose sum is σ = 3025129824. Its totient is φ = 672251064.

The previous prime is 1680627649. The next prime is 1680627671. The reversal of 1680627670 is 767260861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680627671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84031374 + ... + 84031393.

It is an arithmetic number, because the mean of its divisors is an integer number (378141228).

Almost surely, 2^1680627670 is an apocalyptic number.

1680627670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680627670 is a deficient number, since it is larger than the sum of its proper divisors (1344502154).

1680627670 is a wasteful number, since it uses less digits than its factorization.

1680627670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168062774.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1680627670 is about 40995.4591387876. The cubic root of 1680627670 is about 1188.9324205907.

The spelling of 1680627670 in words is "one billion, six hundred eighty million, six hundred twenty-seven thousand, six hundred seventy".