27768387054 has 16 divisors (see below), whose sum is σ = 55546307280. Its totient is φ = 9254540160.

The previous prime is 27768387041. The next prime is 27768387067. The reversal of 27768387054 is 45078386772.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27768387041) and next prime (27768387067).

It is a junction number, because it is equal to n+sod(n) for n = 27768386985 and 27768387003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359067 + ... + 429494.

It is an arithmetic number, because the mean of its divisors is an integer number (3471644205).

Almost surely, 2^27768387054 is an apocalyptic number.

27768387054 is an abundant number, since it is smaller than the sum of its proper divisors (27777920226).

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

27768387054 is a wasteful number, since it uses less digits than its factorization.

27768387054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794435.

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 27768387054 in words is "twenty-seven billion, seven hundred sixty-eight million, three hundred eighty-seven thousand, fifty-four".