47277229977 has 12 divisors (see below), whose sum is σ = 69408830244. Its totient is φ = 31001461920.

The previous prime is 47277229973. The next prime is 47277229981. The reversal of 47277229977 is 77992277274.

47277229977 is a `hidden beast` number, since 4 + 7 + 277 + 2 + 299 + 77 = 666.

It is an interprime number because it is at equal distance from previous prime (47277229973) and next prime (47277229981).

It can be written as a sum of positive squares in 2 ways, for example, as 22420869696 + 24856360281 = 149736^2 + 157659^2 .

It is not a de Polignac number, because 47277229977 - 2² = 47277229973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47277229973) 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 11 ways as a sum of consecutive naturals, for example, 43057038 + ... + 43058135.

It is an arithmetic number, because the mean of its divisors is an integer number (5784069187).

Almost surely, 2^47277229977 is an apocalyptic number.

It is an amenable number.

47277229977 is a deficient number, since it is larger than the sum of its proper divisors (22131600267).

47277229977 is a wasteful number, since it uses less digits than its factorization.

47277229977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86115240 (or 86115237 counting only the distinct ones).

The product of its digits is 43563744, while the sum is 63.

The spelling of 47277229977 in words is "forty-seven billion, two hundred seventy-seven million, two hundred twenty-nine thousand, nine hundred seventy-seven".