1827977912 has 8 divisors (see below), whose sum is σ = 3427458600. Its totient is φ = 913988952.

The previous prime is 1827977881. The next prime is 1827977917. The reversal of 1827977912 is 2197797281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1827977917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114248612 + ... + 114248627.

It is an arithmetic number, because the mean of its divisors is an integer number (428432325).

Almost surely, 2^1827977912 is an apocalyptic number.

It is an amenable number.

1827977912 is a deficient number, since it is larger than the sum of its proper divisors (1599480688).

1827977912 is a wasteful number, since it uses less digits than its factorization.

1827977912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228497245 (or 228497241 counting only the distinct ones).

The product of its digits is 889056, while the sum is 53.

The square root of 1827977912 is about 42754.8583438187. The cubic root of 1827977912 is about 1222.7105174269.

The spelling of 1827977912 in words is "one billion, eight hundred twenty-seven million, nine hundred seventy-seven thousand, nine hundred twelve".