27960894661 has 8 divisors (see below), whose sum is σ = 32131858304. Its totient is φ = 23834068560.

The previous prime is 27960894659. The next prime is 27960894697. The reversal of 27960894661 is 16649806972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27960894661 - 2¹ = 27960894659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27960894596 and 27960894605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27960894601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11033025 + ... + 11035558.

It is an arithmetic number, because the mean of its divisors is an integer number (4016482288).

Almost surely, 2^27960894661 is an apocalyptic number.

It is an amenable number.

27960894661 is a deficient number, since it is larger than the sum of its proper divisors (4170963643).

27960894661 is a wasteful number, since it uses less digits than its factorization.

27960894661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22068771.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 27960894661 in words is "twenty-seven billion, nine hundred sixty million, eight hundred ninety-four thousand, six hundred sixty-one".