2776540830 has 32 divisors (see below), whose sum is σ = 7615655424. Its totient is φ = 634637856.

The previous prime is 2776540807. The next prime is 2776540847. The reversal of 2776540830 is 380456772.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6610602 + ... + 6611021.

It is an arithmetic number, because the mean of its divisors is an integer number (237989232).

Almost surely, 2^2776540830 is an apocalyptic number.

2776540830 is an abundant number, since it is smaller than the sum of its proper divisors (4839114594).

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

2776540830 is a wasteful number, since it uses less digits than its factorization.

2776540830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13221640.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 2776540830 is about 52692.8916458378. The cubic root of 2776540830 is about 1405.5124214247.

The spelling of 2776540830 in words is "two billion, seven hundred seventy-six million, five hundred forty thousand, eight hundred thirty".