27628472860 has 24 divisors (see below), whose sum is σ = 59891400576. Its totient is φ = 10694892480.

The previous prime is 27628472843. The next prime is 27628472867. The reversal of 27628472860 is 6827482672.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27628472798 and 27628472807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27628472867) 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, 22280407 + ... + 22281646.

It is an arithmetic number, because the mean of its divisors is an integer number (2495475024).

Almost surely, 2^27628472860 is an apocalyptic number.

27628472860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27628472860 is an abundant number, since it is smaller than the sum of its proper divisors (32262927716).

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

27628472860 is a wasteful number, since it uses less digits than its factorization.

27628472860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44562093 (or 44562091 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 27628472860 in words is "twenty-seven billion, six hundred twenty-eight million, four hundred seventy-two thousand, eight hundred sixty".