2781048164 has 24 divisors (see below), whose sum is σ = 5145987840. Its totient is φ = 1311423264.

The previous prime is 2781048073. The next prime is 2781048169. The reversal of 2781048164 is 4618401872.

2781048164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2781048169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65099 + ... + 98994.

It is an arithmetic number, because the mean of its divisors is an integer number (214416160).

Almost surely, 2^2781048164 is an apocalyptic number.

It is an amenable number.

2781048164 is a deficient number, since it is larger than the sum of its proper divisors (2364939676).

2781048164 is a wasteful number, since it uses less digits than its factorization.

2781048164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164339 (or 164337 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 2781048164 is about 52735.6441508018. The cubic root of 2781048164 is about 1406.2725625904.

The spelling of 2781048164 in words is "two billion, seven hundred eighty-one million, forty-eight thousand, one hundred sixty-four".