2770788540 has 96 divisors (see below), whose sum is σ = 8433331200. Its totient is φ = 675645696.

The previous prime is 2770788533. The next prime is 2770788547. The reversal of 2770788540 is 458870772.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2770788533) and next prime (2770788547).

It is a self number, because there is not a number n which added to its sum of digits gives 2770788540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2770788547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66861 + ... + 100059.

It is an arithmetic number, because the mean of its divisors is an integer number (87847200).

Almost surely, 2^2770788540 is an apocalyptic number.

2770788540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2770788540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4216665600).

2770788540 is an abundant number, since it is smaller than the sum of its proper divisors (5662542660).

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

2770788540 is a wasteful number, since it uses less digits than its factorization.

2770788540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33331 (or 33329 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 48.

The square root of 2770788540 is about 52638.2801770727. The cubic root of 2770788540 is about 1404.5411283330.

The spelling of 2770788540 in words is "two billion, seven hundred seventy million, seven hundred eighty-eight thousand, five hundred forty".