27916641654 has 16 divisors (see below), whose sum is σ = 60909036480. Its totient is φ = 8459588360.

The previous prime is 27916641629. The next prime is 27916641671. The reversal of 27916641654 is 45614661972.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27916641597 and 27916641606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211489644 + ... + 211489775.

It is an arithmetic number, because the mean of its divisors is an integer number (3806814780).

Almost surely, 2^27916641654 is an apocalyptic number.

27916641654 is an abundant number, since it is smaller than the sum of its proper divisors (32992394826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27916641654 is a wasteful number, since it uses less digits than its factorization.

27916641654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422979435.

The product of its digits is 2177280, while the sum is 51.

The spelling of 27916641654 in words is "twenty-seven billion, nine hundred sixteen million, six hundred forty-one thousand, six hundred fifty-four".