27930525047 has 4 divisors (see below), whose sum is σ = 27931137360. Its totient is φ = 27929912736.

The previous prime is 27930525043. The next prime is 27930525053. The reversal of 27930525047 is 74052503972.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27930525047 - 2² = 27930525043 is a prime.

It is a super-2 number, since 2×27930525047² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27930524989 and 27930525007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930525043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231698 + ... + 330975.

It is an arithmetic number, because the mean of its divisors is an integer number (6982784340).

Almost surely, 2^27930525047 is an apocalyptic number.

27930525047 is a deficient number, since it is larger than the sum of its proper divisors (612313).

27930525047 is an equidigital number, since it uses as much as digits as its factorization.

27930525047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612312.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 27930525047 in words is "twenty-seven billion, nine hundred thirty million, five hundred twenty-five thousand, forty-seven".