27490538061 has 18 divisors (see below), whose sum is σ = 46191585102. Its totient is φ = 15708878640.

The previous prime is 27490538059. The next prime is 27490538063. The reversal of 27490538061 is 16083509472.

27490538061 is a `hidden beast` number, since 27 + 4 + 90 + 538 + 0 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (27490538059) and next prime (27490538063).

It can be written as a sum of positive squares in only one way, i.e., 21695522436 + 5795015625 = 147294^2 + 76125^2 .

It is not a de Polignac number, because 27490538061 - 2¹ = 27490538059 is a prime.

It is a super-3 number, since 3×27490538061³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27490537998 and 27490538016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27490538063) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31167970 + ... + 31168851.

It is a 1-persistent number, because it is pandigital, but 2⋅27490538061 = 54981076122 is not.

Almost surely, 2^27490538061 is an apocalyptic number.

27490538061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27490538061 is a deficient number, since it is larger than the sum of its proper divisors (18701047041).

27490538061 is a wasteful number, since it uses less digits than its factorization.

27490538061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62336841 (or 62336831 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 27490538061 in words is "twenty-seven billion, four hundred ninety million, five hundred thirty-eight thousand, sixty-one".