2123888776 has 16 divisors (see below), whose sum is σ = 4119612300. Its totient is φ = 1025325504.

The previous prime is 2123888773. The next prime is 2123888777. The reversal of 2123888776 is 6778883212.

It can be written as a sum of positive squares in 2 ways, for example, as 2087576100 + 36312676 = 45690^2 + 6026^2 .

It is not an unprimeable number, because it can be changed into a prime (2123888773) 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, 4577115 + ... + 4577578.

Almost surely, 2^2123888776 is an apocalyptic number.

It is an amenable number.

2123888776 is a deficient number, since it is larger than the sum of its proper divisors (1995723524).

2123888776 is a wasteful number, since it uses less digits than its factorization.

2123888776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154728 (or 9154724 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The square root of 2123888776 is about 46085.6677937946. The cubic root of 2123888776 is about 1285.4166566618.

The spelling of 2123888776 in words is "two billion, one hundred twenty-three million, eight hundred eighty-eight thousand, seven hundred seventy-six".