6669673788 has 24 divisors (see below), whose sum is σ = 15567046992. Its totient is φ = 2222585344.

The previous prime is 6669673783. The next prime is 6669673789. The reversal of 6669673788 is 8873769666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669673781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35445 + ... + 120812.

It is an arithmetic number, because the mean of its divisors is an integer number (648626958).

Almost surely, 2^6669673788 is an apocalyptic number.

It is an amenable number.

6669673788 is an abundant number, since it is smaller than the sum of its proper divisors (8897373204).

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

6669673788 is a wasteful number, since it uses less digits than its factorization.

6669673788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159821 (or 159819 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 66.

The square root of 6669673788 is about 81668.0707988134. The cubic root of 6669673788 is about 1882.3549961766.

The spelling of 6669673788 in words is "six billion, six hundred sixty-nine million, six hundred seventy-three thousand, seven hundred eighty-eight".