2187977448 has 16 divisors (see below), whose sum is σ = 5469943680. Its totient is φ = 729325808.

The previous prime is 2187977447. The next prime is 2187977459. The reversal of 2187977448 is 8447797812.

It is not an unprimeable number, because it can be changed into a prime (2187977447) 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, 45582840 + ... + 45582887.

It is an arithmetic number, because the mean of its divisors is an integer number (341871480).

Almost surely, 2^2187977448 is an apocalyptic number.

It is an amenable number.

2187977448 is an abundant number, since it is smaller than the sum of its proper divisors (3281966232).

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

2187977448 is a wasteful number, since it uses less digits than its factorization.

2187977448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91165736 (or 91165732 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 57.

The square root of 2187977448 is about 46775.8211900123. The cubic root of 2187977448 is about 1298.2179622467.

The spelling of 2187977448 in words is "two billion, one hundred eighty-seven million, nine hundred seventy-seven thousand, four hundred forty-eight".