27728745034 has 8 divisors (see below), whose sum is σ = 41647207140. Its totient is φ = 13846342656.

The previous prime is 27728745029. The next prime is 27728745041. The reversal of 27728745034 is 43054782772.

It can be written as a sum of positive squares in 2 ways, for example, as 26243028009 + 1485717025 = 161997^2 + 38545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×27728745034² (a number of 22 digits) contains 22 as substring.

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, 9013009 + ... + 9016084.

Almost surely, 2^27728745034 is an apocalyptic number.

27728745034 is a deficient number, since it is larger than the sum of its proper divisors (13918462106).

27728745034 is a wasteful number, since it uses less digits than its factorization.

27728745034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18029864.

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 27728745034 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred forty-five thousand, thirty-four".