27628939625 has 64 divisors (see below), whose sum is σ = 40228531200. Its totient is φ = 18554227200.

The previous prime is 27628939619. The next prime is 27628939633. The reversal of 27628939625 is 52693982672.

It is not a de Polignac number, because 27628939625 - 2²² = 27624745321 is a prime.

It is a Curzon number.

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 63 ways as a sum of consecutive naturals, for example, 9515924 + ... + 9518826.

It is an arithmetic number, because the mean of its divisors is an integer number (628570800).

Almost surely, 2^27628939625 is an apocalyptic number.

27628939625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27628939625 is a deficient number, since it is larger than the sum of its proper divisors (12599591575).

27628939625 is a wasteful number, since it uses less digits than its factorization.

27628939625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147 (or 3137 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 59.

The spelling of 27628939625 in words is "twenty-seven billion, six hundred twenty-eight million, nine hundred thirty-nine thousand, six hundred twenty-five".