27857125706 has 4 divisors (see below), whose sum is σ = 41785688562. Its totient is φ = 13928562852.

The previous prime is 27857125687. The next prime is 27857125721. The reversal of 27857125706 is 60752175872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14103700081 + 13753425625 = 118759^2 + 117275^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6964281425 + ... + 6964281428.

Almost surely, 2^27857125706 is an apocalyptic number.

27857125706 is a deficient number, since it is larger than the sum of its proper divisors (13928562856).

27857125706 is a wasteful number, since it uses less digits than its factorization.

27857125706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928562855.

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 27857125706 in words is "twenty-seven billion, eight hundred fifty-seven million, one hundred twenty-five thousand, seven hundred six".