27775277773 has 16 divisors (see below), whose sum is σ = 29729082240. Its totient is φ = 25857616896.

The previous prime is 27775277767. The next prime is 27775277801. The reversal of 27775277773 is 37777257772.

It is not a de Polignac number, because 27775277773 - 2¹⁷ = 27775146701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27775277473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579413 + ... + 1596901.

It is an arithmetic number, because the mean of its divisors is an integer number (1858067640).

Almost surely, 2^27775277773 is an apocalyptic number.

It is an amenable number.

27775277773 is a deficient number, since it is larger than the sum of its proper divisors (1953804467).

27775277773 is a wasteful number, since it uses less digits than its factorization.

27775277773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18516.

The product of its digits is 49412580, while the sum is 61.

The spelling of 27775277773 in words is "twenty-seven billion, seven hundred seventy-five million, two hundred seventy-seven thousand, seven hundred seventy-three".