27254670641 has 16 divisors (see below), whose sum is σ = 30892017600. Its totient is φ = 23818065600.

The previous prime is 27254670581. The next prime is 27254670661. The reversal of 27254670641 is 14607645272.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27254670641 - 2⁶ = 27254670577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27254670592 and 27254670601.

It is not an unprimeable number, because it can be changed into a prime (27254670661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113495 + ... + 259596.

It is an arithmetic number, because the mean of its divisors is an integer number (1930751100).

Almost surely, 2^27254670641 is an apocalyptic number.

It is an amenable number.

27254670641 is a deficient number, since it is larger than the sum of its proper divisors (3637346959).

27254670641 is a wasteful number, since it uses less digits than its factorization.

27254670641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373360.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 27254670641 in words is "twenty-seven billion, two hundred fifty-four million, six hundred seventy thousand, six hundred forty-one".