27530434628 has 12 divisors (see below), whose sum is σ = 49839580140. Its totient is φ = 13290554592.

The previous prime is 27530434601. The next prime is 27530434643. The reversal of 27530434628 is 82643403572.

It can be written as a sum of positive squares in 2 ways, for example, as 22934679364 + 4595755264 = 151442^2 + 67792^2 .

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, 118665551 + ... + 118665782.

It is an arithmetic number, because the mean of its divisors is an integer number (4153298345).

Almost surely, 2^27530434628 is an apocalyptic number.

It is an amenable number.

27530434628 is a deficient number, since it is larger than the sum of its proper divisors (22309145512).

27530434628 is a wasteful number, since it uses less digits than its factorization.

27530434628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237331366 (or 237331364 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 27530434628 in words is "twenty-seven billion, five hundred thirty million, four hundred thirty-four thousand, six hundred twenty-eight".