1678069672 has 32 divisors (see below), whose sum is σ = 3197063520. Its totient is φ = 825549120.

The previous prime is 1678069663. The next prime is 1678069693. The reversal of 1678069672 is 2769608761.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739083 + ... + 741349.

It is an arithmetic number, because the mean of its divisors is an integer number (99908235).

Almost surely, 2^1678069672 is an apocalyptic number.

It is an amenable number.

1678069672 is a deficient number, since it is larger than the sum of its proper divisors (1518993848).

1678069672 is a wasteful number, since it uses less digits than its factorization.

1678069672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 1678069672 is about 40964.2487054261. The cubic root of 1678069672 is about 1188.3289097496.

The spelling of 1678069672 in words is "one billion, six hundred seventy-eight million, sixty-nine thousand, six hundred seventy-two".