2780742744 has 64 divisors (see below), whose sum is σ = 8318469600. Its totient is φ = 855612288.

The previous prime is 2780742743. The next prime is 2780742763. The reversal of 2780742744 is 4472470872.

2780742744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2780742744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780742743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492339 + ... + 497954.

Almost surely, 2^2780742744 is an apocalyptic number.

2780742744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2780742744 is an abundant number, since it is smaller than the sum of its proper divisors (5537726856).

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

2780742744 is a wasteful number, since it uses less digits than its factorization.

2780742744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990321 (or 990311 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 45.

The square root of 2780742744 is about 52732.7483069108. The cubic root of 2780742744 is about 1406.2210808631.

The spelling of 2780742744 in words is "two billion, seven hundred eighty million, seven hundred forty-two thousand, seven hundred forty-four".