2780118126 has 40 divisors (see below), whose sum is σ = 6244474104. Its totient is φ = 924482160.

The previous prime is 2780118109. The next prime is 2780118221. The reversal of 2780118126 is 6218110872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47821 + ... + 88583.

Almost surely, 2^2780118126 is an apocalyptic number.

2780118126 is an abundant number, since it is smaller than the sum of its proper divisors (3464355978).

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

2780118126 is a wasteful number, since it uses less digits than its factorization.

2780118126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41198 (or 41189 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 2780118126 is about 52726.8254876017. The cubic root of 2780118126 is about 1406.1157832437.

Adding to 2780118126 its reverse (6218110872), we get a palindrome (8998228998).

The spelling of 2780118126 in words is "two billion, seven hundred eighty million, one hundred eighteen thousand, one hundred twenty-six".