2781399414 has 16 divisors (see below), whose sum is σ = 5565083328. Its totient is φ = 926752392.

The previous prime is 2781399377. The next prime is 2781399433. The reversal of 2781399414 is 4149931872.

2781399414 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 7 ways as a sum of consecutive naturals, for example, 79152 + ... + 108755.

It is an arithmetic number, because the mean of its divisors is an integer number (347817708).

Almost surely, 2^2781399414 is an apocalyptic number.

2781399414 is an abundant number, since it is smaller than the sum of its proper divisors (2783683914).

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

2781399414 is a wasteful number, since it uses less digits than its factorization.

2781399414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190379.

The product of its digits is 435456, while the sum is 48.

The square root of 2781399414 is about 52738.9743358742. The cubic root of 2781399414 is about 1406.3317647826.

The spelling of 2781399414 in words is "two billion, seven hundred eighty-one million, three hundred ninety-nine thousand, four hundred fourteen".