7675121728 has 28 divisors (see below), whose sum is σ = 15279331392. Its totient is φ = 3825211520.

The previous prime is 7675121711. The next prime is 7675121737. The reversal of 7675121728 is 8271215767.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172900 + ... + 212707.

Almost surely, 2^7675121728 is an apocalyptic number.

It is an amenable number.

7675121728 is a deficient number, since it is larger than the sum of its proper divisors (7604209664).

7675121728 is a wasteful number, since it uses less digits than its factorization.

7675121728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385930 (or 385920 counting only the distinct ones).

The product of its digits is 329280, while the sum is 46.

The square root of 7675121728 is about 87607.7720753130. The cubic root of 7675121728 is about 1972.5518330232.

The spelling of 7675121728 in words is "seven billion, six hundred seventy-five million, one hundred twenty-one thousand, seven hundred twenty-eight".