27277775049 has 32 divisors (see below), whose sum is σ = 43779988480. Its totient is φ = 14758085952.

The previous prime is 27277774987. The next prime is 27277775069. The reversal of 27277775049 is 94057777272.

It is not a de Polignac number, because 27277775049 - 2⁸ = 27277774793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 27277775049.

It is not an unprimeable number, because it can be changed into a prime (27277775069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677487 + ... + 716619.

It is an arithmetic number, because the mean of its divisors is an integer number (1368124640).

Almost surely, 2^27277775049 is an apocalyptic number.

It is an amenable number.

27277775049 is a deficient number, since it is larger than the sum of its proper divisors (16502213431).

27277775049 is a wasteful number, since it uses less digits than its factorization.

27277775049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40909.

The product of its (nonzero) digits is 12101040, while the sum is 57.

The spelling of 27277775049 in words is "twenty-seven billion, two hundred seventy-seven million, seven hundred seventy-five thousand, forty-nine".