2781979484 has 48 divisors (see below), whose sum is σ = 5244115968. Its totient is φ = 1286627328.

The previous prime is 2781979457. The next prime is 2781979553. The reversal of 2781979484 is 4849791872.

2781979484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1672037 + ... + 1673699.

It is an arithmetic number, because the mean of its divisors is an integer number (109252416).

Almost surely, 2^2781979484 is an apocalyptic number.

It is an amenable number.

2781979484 is a deficient number, since it is larger than the sum of its proper divisors (2462136484).

2781979484 is a wasteful number, since it uses less digits than its factorization.

2781979484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094 (or 2092 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 59.

The square root of 2781979484 is about 52744.4734924902. The cubic root of 2781979484 is about 1406.4295230260.

The spelling of 2781979484 in words is "two billion, seven hundred eighty-one million, nine hundred seventy-nine thousand, four hundred eighty-four".