427748879277 has 96 divisors (see below), whose sum is σ = 683256442752. Its totient is φ = 256733908992.

The previous prime is 427748879269. The next prime is 427748879279. The reversal of 427748879277 is 772978847724.

427748879277 is a `hidden beast` number, since 4 + 2 + 7 + 7 + 488 + 79 + 2 + 77 = 666.

It is not a de Polignac number, because 427748879277 - 2³ = 427748879269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427748879279) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 298498153 + ... + 298499585.

It is an arithmetic number, because the mean of its divisors is an integer number (7117254612).

Almost surely, 2^427748879277 is an apocalyptic number.

It is an amenable number.

427748879277 is a deficient number, since it is larger than the sum of its proper divisors (255507563475).

427748879277 is a wasteful number, since it uses less digits than its factorization.

427748879277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347 (or 2344 counting only the distinct ones).

The product of its digits is 619573248, while the sum is 72.

The spelling of 427748879277 in words is "four hundred twenty-seven billion, seven hundred forty-eight million, eight hundred seventy-nine thousand, two hundred seventy-seven".