1227771876 has 12 divisors (see below), whose sum is σ = 2864801072. Its totient is φ = 409257288.

The previous prime is 1227771863. The next prime is 1227771877. The reversal of 1227771876 is 6781777221.

1227771876 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1227771877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51157150 + ... + 51157173.

Almost surely, 2^1227771876 is an apocalyptic number.

It is an amenable number.

1227771876 is an abundant number, since it is smaller than the sum of its proper divisors (1637029196).

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

1227771876 is a wasteful number, since it uses less digits than its factorization.

1227771876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102314330 (or 102314328 counting only the distinct ones).

The product of its digits is 460992, while the sum is 48.

The square root of 1227771876 is about 35039.5758535973. The cubic root of 1227771876 is about 1070.7939127856.

The spelling of 1227771876 in words is "one billion, two hundred twenty-seven million, seven hundred seventy-one thousand, eight hundred seventy-six".