27285273061 has 4 divisors (see below), whose sum is σ = 27289556800. Its totient is φ = 27280989324.

The previous prime is 27285273053. The next prime is 27285273143. The reversal of 27285273061 is 16037258272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27285273061 - 2³ = 27285273053 is a prime.

It is a super-2 number, since 2×27285273061² (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 = 27285272999 and 27285273017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27285283061) 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, 2132301 + ... + 2145058.

It is an arithmetic number, because the mean of its divisors is an integer number (6822389200).

Almost surely, 2^27285273061 is an apocalyptic number.

It is an amenable number.

27285273061 is a deficient number, since it is larger than the sum of its proper divisors (4283739).

27285273061 is an equidigital number, since it uses as much as digits as its factorization.

27285273061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283738.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 27285273061 in words is "twenty-seven billion, two hundred eighty-five million, two hundred seventy-three thousand, sixty-one".